The Fact That We Can Smell Functional Groups is Just Such a Thing

[Excerpt from The Secret of Scent (2006) by Luca Turin, pgs 108-111]

Some Strange Clues

It has been said,* correctly in my opinion, that theories define facts as much as the other way around. Nowhere is this more true than in structure-odour relations, where all knowledge is anecdotal. Anecdotal evidence has a sort of slippery, jelly-like quality to it, and theories are needed to congeal the stuff together into single, solid facts. ‘Anecdotal’ is often used as a pejorative term in scientific circles, meaning unreliable. In practice it often means isolated, and therefore hard to assess. Think of a new field of science as a large jigsaw puzzle. Pieces are discovered one by one, and at first they are unlikely to fit together to make a picture. Things can look distinctly unpromising, sometimes for decades. But if you can bear the pain of feeling stupid and the humiliation of being wrong, anecdotal evidence is the call of the wild, the surest sign of the undiscovered. Columbus set sail on the basis of anecdotal evidence. The Mayan hieroglyphs were deciphered using anecdotal evidence. Life-saving remedies based on plants, such as aspirin and digitalis, were found by scientists who paid attention to anecdotal evidence.

Scientific problems typically go through three phases. In the first phase, a few bold explorers discover a new land and map out its basic features. In the second phase, boatloads of immigrant scientists arrive and colonize the land. In the third phase, statues are erected on town squares, sometimes to the original discoverers, more often to the able administrators who build the roads and railways. Smell, as it happens, did not follow this pattern. Scientific colonies never thrived on this particular island. Every few years, a new set of scientists claims to have cleared the jungle, but their cities are eventually overgrown and get lost in the weeds.

In smell, the difficulty is compounded by two additional factors, one obvious, the other more subtle. The first is the supposed untrustworthiness of the smell sensation I’ve mentioned earlier which makes strong men and women doubt their own noses. The second is that when facts, especially anecdotal ones, remain unexplained for long enough, a kind of question fatigue sets in, and they become accepted without being understood. The situation brings to mind a quintessentially British cartoon I saw once where a dinosaur strides past a terraced house, and a couple see it from their living room. Wife: “What was that?” Husband: “Oh, just one of those Things.” The fact that we can smell functional groups is just such a Thing.

Functional groups, as we have seen, are the specific structures of one or more atoms that are responsible for the chemical behaviour of a substance. Examples are thiols (-SH), nitriles (-CN), and aldehydes (-C(=O)H). The little hyphen indicates that these groups are, of course, attached to something and that the Something varies hugely. But the remarkable thing is that the Something matters little to the smell of the molecules. What gives the game away, especially to the casual observer, is the fact that types of smell are named after chemical groups: sulphuraceous, nitrilic, aldehydic, corresponding respectively to -SH, -CN, -(H)C=O. This is particularly clear in the case of -SH. All molecules which contain an -SH group smell (a) strong and (b) reminiscent of rotten eggs.

A word about the description ‘rotten eggs,’ since only a tiny minority of readers will be old enough to remember them. Eggs nowadays come with time stamps and serial numbers, so they seldom get a chance to rot. The rotten eggs smell is today more likely to be experienced in an oriental market (the durian fruit), by opening the gas tap on the stove (a small amount of an -SH compound is added to make sure we notice it), or best of all by going to an Indian store and asking for kala namak or ‘black salt’. Black salt, as its name does not indicate, is actually pink and is a type of rock salt that must come from Hell, as it contains ample amounts of Hell’s Kitchen smell, namely the HSH molecule. HSH is -SH repeated and smells bad twice over. Put some kala namak on your tongue and you will see what I mean. The first thing you will notice is that it reminds you mostly of a very intense hard-boiled egg smell. Clearly, eggs, even when fresh, are itching to fall apart. If you’ve done any chemistry at school, you will also recall the classroom when the teacher was making one of those stinks for which chemistry is famous. Beware though, the culinary satanism of kala namak is beguiling: a tiny amount in blackcurrant ice cream, strawberry daiquiris, coffee, and chocolate does wonders, as long as you don’t let anyone know you did it.

Do all -SH compounds smell identical then, i.e. of rotten eggs? Not a bit, actually: they smell of all manner of things, from grapefruit to garlic via blackcurrants,  but they all have this sulphuraceous (i.e. from Hell) character. The grapefruit compound is particularly instructive. It is called pinanethiol. Thiol means -SH, so pinanethiol means pinane-SH.

Remove the -SH and the rest of the molecule (pinane) smells like pine needles, as it should, since pinane is a major component of turpentine oil, itself extracted from pine. Add the -SH back and, having smelled the pinane by itself and familiarized yourself with kala namak, you can clearly smell the parts of the molecule. That is to say you smell both the pine needles and the sulphur. Smell another very strong -SH compound like H₃C-SH, or methanethiol, for a few seconds till the nose (mercifully) tires of the hideous -SH smell, then go back to pinane-SH. Surprise! The sulphur note is now almost gone and the molecule no longer smells of pinane-SH, but instead smells of pinane tout court. This means that this molecule smells like the sum of its parts. In other words, -SH is a primary, though the other smells are not. But how does that work? How do we know what parts it’s made of? This, as we shall see, is the greatest mystery of smell. Looking for an answer will take us amazingly far afield.

* Paul Feyerabend, among others, convincingly argued this view in Against Method, required reading for those who believe the scientific method is something which can be written down and followed like a recipe.


On a recent conversation I had with Luca, I shared with him the fact that there are anti-tolerance drugs that can lessen (and even reverse) the physiological tolerance to drugs such as painkillers. He was seriously surprised by this fact. Despite spending a whole career studying biological regulatory systems, he had never in his life heard of anti-tolerance drugs in academia. Upon hearing this, he shared that in his experience, most of the innovation in science comes from people who work hands-on in the field, as this exposes them to a much broader evidential base than you would encounter when doing research in a strictly theoretical way.

Thus, he has learned far more about consciousness from psychonauts than he ever has from academic psychopharmacologists, and has learned more about electronics from radio amateurs than professional electrical engineers. In other words, the people who actually tinker with the inner mechanisms of the systems they’re interested in are the people to ask for “weird and novel phenomena”, rather than (only) those who study the field academically angling for a university post or a narrow job in the industry. Same, of course, with the science of smell: actually tinkering with aromachemicals can give rise to discoveries one may never stumble upon by merely studying scent receptors in a lab. Needless to say, the best outcomes will come from seamlessly blending both worlds; but for that to happen we will have to embrace phenomenological reports as acceptable leads for research in science.

See Luca Turin’s recent series on the science of smell on youtube: The Secret of Scent (including a video on the objections to the vibrational theory of olfaction).


[Excerpt from Phenethylamines I Have Known And Loved (published in 1990 and usually abbreviated as PIHKAL) by Alexander and Ann Shulgin, pgs. 98-103]

Part Two: Alice’s Voice


When I finally gave it a name, I called it the Spiral.

This is how it was. Lying down for a nap time (as a child) or at night for sleep, I would have reached that point of relaxation where one is not very much aware of the body. The small itches and discomforts have subsided, and the mind is beginning to drift. When I sensed it beginning (I never knew when it was going to come), I would immediately snap into alertness, excited and pleased, then I would just lie quietly as it unfolded.

The first thing that happened was a change in my breathing. It became increasingly shallow, to the point where my rib cage was barely moving at all.

If someone came into the room and talked to me, as sometimes happened, I could open my eyes and answer normally; the experience continued uninterrupted inside my head.

Every part of it, every stage, was the same each time. It was always in black and white. There was no color anywhere, and try as I did, especially around the age of fourteen, I could not force color to come onto the screen. And I could never extend it, by so much as a few seconds. When it was finished, it was finished.

First came the image-sensation after which I named the entire experience – the spiral. I felt my entire self drawn rapidly into a tiny point which kept shrinking, until it could shrink no further, at which time the microscopic point became a tunnel in which I continued traveling at great speed, inexpressibly small and implacably diminishing.

Simultaneously, I was expanding. I was expanding to the edges of the universe, at the same tremendous speed as that of the shrinking, and the combination, the contraction-expansion, was not only an image, it was also a sensation the whole of me recognized and welcomed. This experience of myself as microcosm-macrocosm lasted exactly four minutes.

The image of the spiral is found everywhere that the human has left his mark on earth. It has been cut into rock faces, painted on huts and clay pots, traced on the walls of initiation caves. I’m certain that it has been important to all the races of man because it is a symbol for the experience I’m describing, and for the concept, the understanding that the intellect forms out of what is initially not an intellectual, but a soul experience of the Alpha and the Omega.

The next stage came abruptly, as did all the changes. I was looking at standing figures which were vaguely human, dark thin figures being pulled into elongated shapes, like the sculptures of Giacometti. They stretched out, arms and legs like black string, until it seemed they could elongate no further, then the scene changed and I was watching obscenely rounded bodies, Tweedledums and Tweedledees without costumes, their small heads and legs disappearing into their puffed, bloated flesh.

The sensation accompanying this stage was one of discomfort, unpleasantness, a feeling of something grating on my soul. I once timed this part and the one that followed; they lasted a total of six minutes. I disliked them intensely.

Abruptly again, the inner screen became white, a horrible dead-white, nasty and aggressive like the underbelly of a sting-ray. After presenting itself for a few seconds, the flat white began to curdle from the outer edges into black, until finally the screen was totally black. A thick, awful, dead black, a pool of tar in an unlit cave deep underground. After another brief pause, the black began to curdle at its edges into the white again. The process repeated itself once, and the sensation was similar in every way to the previous one: irritating, grating, a feeling of unpleasantness that approached repugnance. I always endured it with a mental gritting of teeth, knowing it had to be gone through because that’s the way it always went and it was not to be changed.

And then, finally, I broke out into the last stage, the final part for which I had always been and always would be willing to undergo the middle parts.

Now I was at the edge of an unseen cliff, looking out into a very different blackness, the deep, cradling blackness of the infinite universe, of space which stretched without end. I was completely happy and comfortable in that place, and would have stayed there indefinitely, had I been allowed, breathing in the beautiful darkness and the exquisitely familiar sense of infinity as a living presence, surrounding me, intimate and warm.

After a moment of this pleasure, came the greeting. From the upper left-hand corner of the universe there came a greeting from Something which had known me, and which I had known, since before time and space began. There were no words, but the message was clear and smiling: Hello, dear friend, I salute you with respect-humor-love. It is a pleasure with laughter-joy to encounter you again.

That which greeted me was an entity so far removed from anything in human experience that I concluded, when I was an adult, trying to find a way to describe it to myself, that even the word, “entity”, could not be applied; a word creates boundaries, it says this is the shape of what you are describing, as different from other shapes which are bounded by other words. It had no shape, no form, no definition, no boundaries. It was. It is. It was my oldest friend and it greeted me as its equal. I always replied to it with a rush of love and delight and my own laughter.

Then it was over.

It had taken exactly twelve minutes.

It was something I’d always experienced, taken for granted, and had given no thought to when I was very young. Not until age fourteen did I take a good look at it and recognize it as unusual, something peculiarly my own, my secret private treasure. I also got very analytical about the whole thing, began my habit of timing it and made the first of my unsuccessful efforts at altering it. But I didn’t decide on a name for it until many years later, discarding “Microcosm-macrocosm,” as too long and unwieldy, and settling on the simpler “Spiral.”

It had probably been going on since I was born. There’s no way to be sure, of course, but because it had been part of my life ever since I could remember, I tend to assume it was familiar to me from the very beginning. My mother said something once about having seen a change of some kind coming over me occasionally when I was a baby; she said she didn’t worry about it because when it passed, I appeared to be quite normal.

It always (with one single exception) came under the same circumstances, when I had settled down in bed for a nap or for the night’s sleep, but well before sleep itself took over.

The one exception happened when I was around fifteen, shortly after my father had been transferred to Santiago de Cuba as American Consul. We were staying in a hotel, while those responsible for helping us find a home were still busy with their search. My father and mother, my brother Boy and I were having lunch in the hotel dinning room and my eyes focused on the butter plate on the table. In the exact center of the round plate was a single pat of butter, and somehow the sight triggered the familiar feeling I associated with the beginning of the Spiral. I was surprised and very pleased, because it was a new thing to have it start under such unusual circumstances.

I was also pleased because it was my special thing, and in asking to be excused from the table to go up to my room, I felt a certain sense of importance, which was rare when I was with my family. I said just enough to make it clear that my strange “thing” was beginning, and my parents grudgingly gave me permission for me to leave. I reached the room upstairs in time for the completion, the wonderful last few moments. It turned out to be the only time it ever happened that way – when I was out of my bed, involved with ordinary matters of daily living.

I tried to make it come, searching out all sorts of images of round space with dots in the center, but nothing worked. I never found a way to make it happen. It came when it chose to, unexpectedly, once in a while. The times it chose had no apparent connection to anything else that was going on in my life, either generally or in particular. In twenty-five years, believe me, I looked for every possible connection; I found none. When I was very little, I think it might have happened as often as once a week or so, but as I grew older it came less and less often, until around age twenty-five, when it happened only twice in one year, then never again.

The discovery that I was not alone in my journey into the interior cosmos came as a complete surprise. It gave me a great deal of excited pleasure and opened up a whole new series of questions. I happened when I was around twenty two, and – interesting enough in itself – the two proofs came to me within a single four month period.

The incidents were astoundingly similar.

The first one took place one evening when I went to a party given by a friend in San Francisco. I was in the host’s kitchen with several of the other guests, doing what people usually do in strange kitchens at informal parties – talking, drinking and munching potato chips and carrot sticks – and after a while one young man named Evan and I found ourselves alone, deeply involved in a conversation about unusual experiences, mostly read about or heard from others, the kind of conversation that seems to come about more easily, somehow, in the midst of a high energy, noisy party than at any other time.

Suddenly Evan was telling me about what he referred to as “a really weird thing,” which had been happening to him ever since he was very young. I remember the prickling that spread up my back as he began describing it, and I understood immediately the look that gradually came into his face, a mixture of embarrassment and anxiety (She’s going to think I’m crazy; why am I talking about this?). I tried to make it easier for him to continue by nodding encouragingly and once – when he faltered briefly – I volunteered what I knew was going to be the next image, and he looked startled, almost frightened, drank a bit from his glass, muttered, “Yes, exactly”, and continued to the end. His end was not mine; his journey came to a close after the black and white curdles. I thought, with a touch of pity, that he seemed to have missed the best part, although he did have the wonderful spiral at the beginning. I was glad I hadn’t prompted him further. When he’d finished his story, I told him I’d had every one of the images he had described, and that he was the first person I’d ever met who shared the experience. I said nothing about my own different ending.

He was staring at me, and I wasn’t sure he’d really heard what I’d been telling him. Finally, he smiled and said that I was the first person he’d ever told about this private, “crazy thing,” and he couldn’t believe – it was so extraordinary – that I actually knew what he was talking about. He said that he had always wondered if the experience was a sign of insanity of some kind, and it was such a relief to know that somebody else had had it. Neither of us felt it necessary to add that, in a situation like this, it was also reassuring to see that the person who shares your strangeness appears to be relatively sane and reasonably functional.

I smiled back and said I understood exactly how he felt. We left the kitchen and joined the rest of the party. I never saw him again, and didn’t particularly expect or want to. It was enough to have heard one other person repeating what I knew so well, and it was intriguing to know that my journey, or process, had gone farther, longer, than Evan’s; after all, although I was more than willing to give up exclusive rights to the whole thing, I didn’t mind retaining a little bit of superiority.

The second incident was almost identical to the first, the only difference being that the young man (whose name I forgot almost immediately) was talking to me in somebody’s living room, instead of the kitchen, in the middle of another noisy party, when he began describing the “strange vision” that he, too, had had ever since he was a small child. His, also, ended short of where mine did, and he was astounded and obviously very relieved to know that there was somebody else in the world who knew about it.

Both young men seemed quite unremarkable, although pleasant enough and intelligent. I never saw the second one again, either.

I remember wishing briefly that I could put an ad in the Chronicle or Examiner, something along the lines of, “Seek contact with others who have experienced…,” and of course, the imaginary ad stalled there.

It happened – my beloved Spiral – for the last time when I was twenty-five. I had no way of knowing, of course, that it would not come again. It may or may not have been a coincidence that, within three weeks of the last time, I had my first encounter with a psychedelic material, the Divine Cactus, peyote.

Has the above ever happened to you? Did you experience the Spiral as a kid? If so, please let us know!

See also:

Featured Image Credit: Matthew Smith

Qualia Research Diary: Scents

[Epistemic Status: Diary Entries]

“Fake it until you deep fake it.”

― Joscha Bach

“Break often – not like porcelain, but like waves.”

― Scherezade Siobhan

“Ideology has two meanings- actually, most social terms have two meanings, one for the traumatized and one for the non-traumatized.”

― Michael Vassar

“You know the old adage about monkeys typing into infinity, and the question about whether they would eventually produce Hamlet? I think that maybe we are those monkeys, and we’re producing countless Hamlets every single day.”

― Jacob Stephen

“Reality is very weird, no doubt. At the same time, it is easy to get wrong ‘what kind of weird’ reality is.”

― Matthew Barnett

“It is not true that suffering ennobles the character; happiness does that sometimes, but suffering, for the most part, makes men petty and vindictive.”

― W. Somerset Maugham

December 13th 2019

In a different timeline, I open a high-class experimental qualia-focused restaurant. There is only one kind of meal every month, and it is a challenge to finish it. Only 10% of people manage to do so. On March of 2022, the menu consists of:

  1. A soup. A liter of (tap) water with a single mint leaf in it. Do not be deceived, this is not “spa water”. The amount of mint in it is exactly right below the perceptual threshold for the most discerning of tasters. Hence, you are guaranteed to (a) not be able to taste anything at all, while (b) fully knowing you are indeed drinking aromatic molecules from the mint leaf. Also, they give you a spoon and a straw. If you use the straw, you are “drinking your soup” while if you use the spoon you are “eating your soup”. Up to you. It’s a conceptual piece after all. Once -and only once- you finish it, they serve you the second course…
  2. There are aromas and flavors out there in the state-space of qualia-triggering molecules that cancel each other out perfectly. The second course consists of a series of small hors d’oeuvres that are completely tasteless. If you can taste anything- e.g. a hint of garlic, or orange- it means the chef didn’t prepare it well. The flavors need to be perfectly balanced for them to be entirely tasteless. And once you are done, they bring you…
  3. This thing they left on your table is akin to a wire puzzle, or one of those Hanayama pieces. They tell you that your third course consists of a tiny cookie hidden inside it. Average solving time: 25 minutes. 50% of people can’t solve it.
  4. You are given a miniature 3D printed sugar statue reconstruction of someone who shares your name (as close as possible). Before eating it, you have to scream “There can be only one!” and consume your namesake in a single bite.
  5. Trace minerals. They bring you this large metallic bowl with a tiny little bit of powder at the bottom; certainly no more than 50 or 60 milligrams of material. It contains half of your daily recommended dose of iron, manganese, copper, iodine, zinc, cobalt, fluoride and selenium. You can now finally know what these actually taste like. It turns out that the characteristic taste of your grandma’s famous tapioca dish was zinc. Moving on…
  6. Negative food. You donate 300ml of blood.
  7. Distilled saliva. You spit in a bowl a number of times. You are then given a little shot of perfectly tasteless and clean water. The water is chemically pure. However, it is the water in the saliva of the spit of another customer.
  8. Double blind taste experiment. You are given a dish. The waiters do not know what it is. You do not know what it is. You have to write a 100-word report of what you think about this dish. This is actual science; the data is used by a research lab at some undisclosed university. There is something very Buddhist about this course – how much does your top-down model of what you are eating modify your perception of it? What if you do not assume an “essence” behind it – block that specific energy sink from robbing you of the experience of raw low-level sensation?
  9. Sound control. Did you know that food tastes different in an airplane? Many factors contribute to this, but a major one is the constant background noise you can hear inside the aircraft. Turns out tastes change with specific sounds. The Qualia restaurant spent $500,000 dollars researching this (and publishing a number of peer-reviewed papers in the process). The output of that research is that you can now make chocolate taste like vanilla, and strawberry taste like melon – if only you play the proper sound at the right volume. And finally…
  10. Stroboscopic taste – you put on a mouthpiece that entrains half of your tongue to a 30Hz electric seizure vibration while the other half is entrained to 17Hz. As you eat the Ice-cream of Victory (flavored with passionfruit, peanut, and anise) you realize that the flavors combine with the stroboscopic stimulation to create the hallucination of an entire meal replete with much more complex flavors. The beat patterns are tasty.

If you finish the entire thing (which usually takes about 5 hours total) they take a photograph of you and “keep it to themselves”. No, there is no “victory board”. They just want a picture of you.

5/5 | Would recommend.

January 6th 2020

Favorite essential oils at the moment: Freesia, Violet, and Pear. It turns out Freesia was a predominant note in Dior “Addict 2“, a perfume I fell in love with when I was a teen. Violet is “ethereal” in that it feels strangely anesthetizing (the ketamine of smells). Pear is lovely.

High Entropy Alloys (HEAs) and Scents:

  1. Some scent combinations “collapse categories” (e.g. too many flowers combined blend into “generic flowery”).
  2. Others make unstable multi-phase blends (e.g. too many categories – spicy, citrus, minty, woody all at once).
  3. Violet + Pear create a scent HEA.

An interesting blend with “emergent” characteristics: Freesia, Pear, Violet, Sunflower, Azalea, and Patchouli. Very high valence mixture that has a novel feeling that does not seem to come from the ingredients. #HighEntropyAlloy #HighEntropyScent

January 8th 2020

Careful with raising the “scent entropy” too high!

In sound and sight, it seems that there is an inverted U curve relationship between stimuli entropy and the entropy of the experiential response. White noise may be- objectively- the way to cram in as much information as possible into a waveform. But perceptually, white noise is more like its own (neutral valence, indifferent) tone. Likewise visually, if you crowd your images way too much you can’t actually understand its meaning and true complexity. Perceptual complexity response is maximized in the middle, where you achieve “peak useful entropy”.

More so, extremely entropic stimuli can be used to “mask” any input by adding a dose of white noise or visual static. That’s how you can degrade the valence of something when you don’t know what kind of unpleasant input you will get in advance. White noise drowns out both construction sounds and baby screams. It’s a “universal diluter”, so to speak.

And so it seems that this is the case with smells too. If you combine any 40 (42?) scented molecules that are as different as possible, you get as a result a generic smell with neutral valence that is not distinctive at all. If you make a different 40-scent mixture with completely different molecules, it also smells the same! They call it white noise scent, or “Laurax”*.

In other words, the “high-entropy alloys” of smell may only really pay off in the range of 5 to 15 different molecules, where (perhaps) we maximize the experiential “character” of the resulting fragrance.

Now, of course commercial perfumes in practice do have dozens if not hundreds of aromachemicals. But their absolute “scent entropy” is probably not that high. Why? First, the entropy is reduced by the fact that most perfumes do concentrate on a few core notes; the many other notes are usually small additions and tweaks. And second, the perfumes are usually made with relatively few categories of smells blended together (musky, citrus, and flower could be one, or green, ozonic, and non-citrus fruity another, and so on). Additionally, to get true white noise smell you need to also add negatively valenced scents, which are rarely used in actual perfumes. I do wonder, though, if the perfume industry has a sense of the “scent entropy” of their various perfumes, and if having a measure of it would perhaps improve their ability to hone in on blends that have unique emergent characters without relying entirely on heuristics and trial and error. Or how about a portable “scent-entropy-o-meter”? I bet it would find some very useful applications.

[Good article about it: The “white noise” of smells; *I first learned about Laurax here: The whiff of white could hide strong odours: Complex mixtures of many odours tend to smell the same.].

January 10th 2020

Of all the industries, I get the impression that the perfume industry is ahead of the curve when it comes to incorporating hedonistic utilitarian notes into its embedded ideology.

January 11th 2020

Cilantro tasting like soap to 10% of the population is just the tip of the iceberg.


January 13th 2020

What are your favorite perfumes?
(and if it’s not impossible to describe – why do you like them so much?)

I’ll start:

Addict 2 by Dior
Eros pur femme by Versace
Light Blue by Dolce & Gabbana

Oh god, what kind of person have I become?

January 14th 2020

Scent combinations with unusual emergent characters that are “more than the sum of their parts” I have discovered so far:

  1. Violet + Pear
  2. Rose + Orange
  3. Honeydew Melon + Pomegranate
  4. Freesia + Golden Hydrangea

In each of these cases, combining in roughly equivalent intensities (i.e. 50-50 ‘equipotent’ mixtures) seems to give rise to qualities that are not present in either of the two scents. This is relatively rare, IMO. If you combine, e.g. lilac and jasmine, you just get something that smells like “lilac and jasmine”. But the four combinations above seem- to me- to give rise to new exotic qualia varieties.

An accord is more about getting rid of the individually distinguishable component scents. The end result, however, is one of a “generic” scent within a given category (or subcategory). For example “white flower accord” or “citrus accord” are common. And although you can distinguish between two citrus accords, they don’t really have unique character – at least not more than e.g. various kinds of brown noise have a unique character. The combinations I’m mentioning are not just ways of creating a category blend so that other elements of the perfume can be more noticeable. Rather, they are on their own uniquely characteristic, much like other pure essential oils.

If you mix a wide enough variety of flowers you inevitably get a flower accord. To get a new qualia type emergent you need something else. (I should add I’m new to the field and have a lot to learn).

I’m developing a way of explaining what a scent is like at a glance with relatively few parameters. One of them is category entropy, meaning how close a given category in the scent is to the maximally blended version of it (i.e. a fully generic “flowery” scent has maximum category entropy).

Then another parameter is the “global entropy” which describes how close the scent is to total white noise scent.

So we start by saying e.g. perfume X is “50% of the way to white noise scent and its distribution of core categories is 30% woody, 30% floral, 20% fruity, and 20% citrus”, then we zoom in to each category and describe its category entropy and salient notes: “the floral entropy is 40%, and the 60% remaining is shared in equal measure between rose and azalea” (repeat for each category).

Additionally, another important thing to add is if there are “note to note interactions”, which in my (limited) experience happens with some pairs. Maybe 10% of them, but I don’t know for sure. But you could describe them with lines between individual notes in a diagram. To round it all out, you also would point out the note accords that work as “phases” in the overall scent (drawing inspiration from high entropy alloys – an alloy that does not make a single crystal structure is called “multiphasic”). E.g. mango + patchouli + cinnamon + jasmine tends to produce two phases, a mango + cinnamon phase that toggles in your attention with the jasmine + patchouli phase. Finally, we would also note “valence inversion” effects that happen when there are combos of scents that when placed together give rise to a flipped valence (also a rare effect, IME).

For a slightly higher level of resolution, we would break down each category into subcategories and then describe the entropy of each. E.g. a floral perfume could be 80% of the way to maximum floral entropy in the “white flower” subcategory but only 10% of the way to maximum entropy in the “powdery flower” category.

This would allow us, I think, to put our finger on many scents that are hard to describe otherwise. Indeed, a lot of sophisticated perfumes, IMO, are playing a lot with different shades of high entropy, so talking about them in terms of notes like jasmine or amber is very misleading. It’s like calling a certain kind of brown noise “closest to a guitar sound” because one lacks words for describing noise profiles.

January 23rd 2020

Scent Factorization:

So we know that we can get “white noise smell” by combining 42 scents of completely different kinds at the same time. This maxes out the “scent entropy” (aka. “Laurax”).
If you combine 42 different flower scents, however, you get a maximally generic “flowery scent”. I call this “category collapse”.

Now some scents have what I call “special effects”, which are category-neutral qualities. An example is the ‘bitterness’ of grapefruit, which although is often associated with fruits, can occur in entirely different categories too.

So I thought: what if we try to combine scents from as many categories as possible that all share the same special effects? I call this “scent factorization”. Namely, you try to get “special effect + Laurax” by canceling out everything but the special effect.

I believe this actually works. Example:

A factorization of “bitter-sweetness” can be obtained by mixing:

Grapefruit + Geranium + Bergamot + Pomegranate + Cedar-wood

In this case you will see that geranium is almost like “the grapefruit of flowers” in that it is flowery in nature but still shares the same “bitter” quality as grapefruit (albeit at a different frequency – yes scent frequencies are a thing, but that’s a story for another time). Likewise, cedar-wood is the most grapefruit-like wood I’ve smelled.

Another interesting factorization is that of “creaminess”:

Coconut + Fig + Vanilla + Almond + Sandalwood

In this case, again, you’ll see that sandalwood is the most “creamy” of all woods (as far as I have tried), fig is the most creamy of all fruits, and so on.

But this is just the start. What other scent factorizations could we try? I’d say we could aim to have the special effects of “ozonic”, “green”, “ethereal”, “powdery”, “acrid”, “cloying”, and so on factorized. Each deserves to become its own perfume in my up and coming new line of high end perfumes called “The State-Space of Scents” (for the consciousness connoisseur).

February 2nd 2020

The Qualia Review – Episode 1: Women’s Perfumes (Part 1):

The Qualia Review – Episode 1: Women’s Perfumes (Part 2)

The Qualia Review is a tongue-in-cheek program where you will get non-expert opinions about the quality of experiences by people who really care about consciousness:

In each episode, Andrés Gómez Emilsson ( reviews a particular qualia variety (i.e. category of experience) with a co-host (in this episode Victor Ochikubo).

In this first episode we review women’s perfumes. In particular, we review (from worst to best):

La Panthére by Cartiere (EDT)
By Invitation by Michael Bublé (EDP)
Guilty by Gucci (EDT)
Brit Rhythm by Burberry (EDT)
Jolie Fleur Bleue by Tory Burch (EDP)
Rose Goldea by Bvlgari (EDP)
Daisy Love by Marc Jacobs (EDT)
Valentino by Valentino (EDP)
Amazing Grace Ballet Rose by Philosophy (EDT)
Light Blue by Dolce & Gabbana (EDT)
Eros by Versace (EDT)

You will notice that this is unlike any other review of perfumes. This is because the review here provided addresses the following three aspects of scents:

  1. A qualia-focused account (i.e. entropy, categories, special effects, etc.)
  2. What kind of person would enjoy wearing this perfume (mood-congruence, personality, etc.)
  3. The social signaling that the perfume entails (sexual signaling, genetic fitness signaling, etc.)

In particular, (1) describes scents in terms of:

  • A) The global entropy (e.g. 40% of the way to white noise scent)
  • B) The within-category entropy (e.g. 70% of the way into ‘generic flowery’)
  • C) The individual notes that can be detected within each category (e.g. non-generic jasmine note being 30% of the flowery category)
  • D) Lines connecting notes that have non-linear interactions (e.g. pear & violet, rose & orange, pomegranate & honeydew make unique blends that have phenomenal properties unlike those of the individual ingredients)
  • E) Lines connecting notes that form separate “phases” across categories (e.g. with a mixture of mango, sandalwood, rose, lemon, and cinnamon you get three phases rather than a global consistent smell – mango + cinnamon, and lemon + sandalwood, with rose staying its own distinct scent)
  • F) Lines connecting “valence inversion” effects (some notes simply don’t seem to go together even though they are pleasant individually)
  • G) Special effects (e.g. “powdery”, “ethereal”, “acrid”, “creamy”, etc.)

Thus, we share an entirely new angle on how to describe the ineffable. Namely, the hard-to-put-your-finger-on elusive subjective quality of scents can finally be grounded in terms we can all understand (with a modicum of shared background assumptions).

Hope you enjoy! Happy scent qualia!

~Infinite Bliss~

February 5th 2020

Three scents that are surprisingly similar to strawberry (based on my personal experience with essential oils):

  1. Fig
  2. Freesia
  3. Peony

In fact, following the “scent factorization” concept – if you make a mixture of these three scents the resulting oil smells almost exactly like strawberry cake. Strange!

February 9th 2020

I love this video! The idea that the information content in a perfume could possibly fit so much phenomenal detail is enticing, albeit perhaps a bit optimistic.

In the interest of honesty, out of the 15 or so women’s perfumes I’ve experienced deeply so far, La Panthere by Cartier is the worst by quite a long shot.

I don’t mean this to troll! I am serious. I still don’t quite know why I feel it as so unpleasant. I think it has to do with its very high entropy quotient, and the fact that it centers around gardenia, which is my least favorite flower. It feels predatory – and perhaps the perfumist did succeed at telling a story. Too bad I aim to reprogram the biosphere so that predation is a long-forgotten nightmare of our ancestral Darwinian environment of adaptedness. So long! We should aim to transform scent exploration from its current state of commercialism mixed in with weapons of sexual conquest, and push it into new frontiers… the exploration of the state-space of consciousness, valence research, perhaps even energy parameter modulation! The future of scent qualia research is wide open.

The Qualia Review – Episode 2: Men’s Perfumes

The Qualia Review is a tongue-in-cheek program where you will get non-expert opinions about the quality of experiences by people who really care about consciousness:

In each episode, Andrés Gómez Emilsson ( reviews a particular qualia variety (i.e. category of experience) with a co-host (in this episode Victor Ochikubo).

In this second episode we review men’s perfumes. In particular, we review (by order of appearance):

CK2 by Calvin Klein (EDT)
Pasha de Cartier Edition Noir by Cartier (EDT)
Virtu by Vince Camuto (EDT)
21 Le Fou by Dolce & Gabbana (EDT)
Le Male by Jean Paul Gaultier (EDT)
Scuderia Ferrari Light Essence Bright by Ferrari (EDT)
Jimmy Choo Man Blue by Jimmy Choo (EDT)
1 Million by Paco Rabanne (EDT)
Terre D’Hermes by Hermes (EDT)
Invictus by Paco Rabanne (EDT)
Bleu De Chanel by Chanel (EDP)

In this episode we also discuss the way in which an enriched conception of art could helps us reformulate the artistic potential of perfumes. We make allusions to the 8 models of art discussed in a previous video:

Harmonic Society: 8 Models of Art of a Scientific Paradigm of Aesthetic Qualia

See also:

Harmonic Society

Hope you enjoy! Happy scent qualia!

~Infinite Bliss~

February 10th 2020

Top 5 Male Perfumes:

  1. Bleu de Chanel (EDP)
  2. Scuderia Ferrari Light Essence Bright (EDT)
  3. Le Male by JPG (EDT)
  4. Nautica Voyage (EDT)
  5. 21 Le Fou by D&G (EDT)

It’s very sad that there is a huge paywall for scent qualia. It’s your birthright to know what they smell like!

February 11th 202084357695_2785896804835792_4296261472725499904_o

~120 essential oils and ~40 perfumes (ordered by categories and general character).

This is the dataset my brain has been training over to interpret the state-space of scent qualia for the last month and a half. This is still amateur level – but I can nonetheless confidently say that I now understand scent qualia at least 50% better than I did last year.

I would still appreciate specific suggestions for essential oils or perfumes to get that are very unusual or characteristic. I continue to be surprised by the uniqueness of oils, fragrances, and mixtures I haven’t tried before.

Also: drastic income inequality is a massive tragedy, no doubt. But why are people not talking about qualia inequality? I wish everyone was as qualia-rich as I am right now. I’m happy to share some scents with people who feel qualia-deprived; just come to the Bay and give me a call. 🙂

Ps. Peony is an incredibly versatile low-entropy flower scent with a creamy strawberry-like effect. I kept reading about how this or that perfume has peony in it, but it really took me owning an essential oil of it to grok the type of qualia peony is all about. Someday there will be a monument built to celebrate the qualia variety disclosed by peony formulas. I’m pretty sure of this.

February 14th 2020

People say “a blind buy” when they talk of buying a perfume they haven’t smelled. Shouldn’t it be more appropriate to say an “anosmic buy”?

February 18th 2020

In order to survive the apocalypse, having a “blue” fragrance on hand will become very useful. I suggest “Nautica Voyage“.

You can thank me later!

February 21st 2020

Sense of Smell is Linked to Sexual Orientation, Study Reveals

Very interesting! Two followup questions: (1) does it replicate on a larger sample size? and (2) is the baserate of different sexual orientations of anosmic people statistically different than those of the general population?

Gay men showed a strong preference for the body odour of other gay men in the scientific test of how the natural scent of someone’s body can contribute to the choice of a partner.


Although previous studies have shown that body odour plays a role in making heterosexual men or women attractive to members of the opposite sex, this is the first study that has investigated its role in sexual orientation. Charles Wysocki of the Monell Chemical Senses Centre in Philadelphia, a non-profit research institute, said the findings underline the importance of natural odours in determining a sexual partner whatever the sexual orientation of the person involved.


“Our findings support the contention that gender preference has a biological component that is reflected in both the production of different body odours and in the perception of and response to body odours,” Dr Wysocki said.

February 25th 2020

Review of Shalimar Eau de Parfum by Guerlain for women:


February 27th 2020

Jasmine, Tuberose, and Gardenia: the Dark Triad of White Flowers. Beware! They are treacherous, envious, and guileful. DO NOT TRUST. They will ruin your perfume with their high-entropy indolic ‘broad spectrum scent noise’. Deranged, distracting, and disingenuous. #FlowerProblems

March 12th 2020

Why you should not insufflate ketamine: (1) it can irreversibly damage your bladder and cause very serious untreatable chronic pain, (2) it can damage your liver, also very painful, but above all (3) it will slowly degrade your ability to experience scents! Not worth it IMO!

Cocaine is well known for causing anosmia in regular users. I suspect we are going to see a wave of anosmic people as ketamine becomes more popular. Don’t be a victim. “Remember kids, don’t insufflate drugs – either eat them or inject them” would be my DARE go-to phrase.

March 16th 2020

Running out of hand sanitizer but you are fab and have a perfume collection? Use some cheap perfume instead! It’s usually 70+% alcohol.


March 22nd 2020

There’s An Unexpected Loss Of Smell And Taste In Coronavirus Patients

Factoring in the loss of precious qualia would make this epidemic even worse. This year I’ve finally begun appreciating the state-space of scents. I’m heartbroken to learn about this effect. So much qualia in potentia that might be lost!

March 23rd 2020

We should emphasize the possibly of life-long loss of smell in order to get more young adults onboard with strict social distancing measures. A 20-something person might not fear a fever, but they may fear “having less sexy sex and enjoying food less for the rest of their lives”.

March 26th 2020EUF6KWvUEAIAbO5

Sense of smell over the years. People under 40: please do yourself a favor and get some nice scents so you enjoy them while you are still sensitive to them. It’s always a tragedy not to use a qualia variety and then lose it. #qualia #scent #aging #valence #bliss #WeAreTheQualia

March 29th 2020EUQLBqVUEAA3Nwh

This is the future – in 2010 I was saying that in the long run humanity will need to adopt entirely new and seemingly extreme measures against contagious diseases.

Nasal filters (aka. “nose condoms”) were one of the ideas I was considering at the time. Reality is now catching up with fiction.

Why adopt extreme measures? Because we haven’t seen anything yet. The possibility of rational virus design and the political will to invest in innovative weapons means that sooner or later we will encounter things with a case fatality rate > 80% and R0 > 4. Nothing short of large-scale contact network engineering and the widespread use of tech like nasal filters can really work against those long-tail risks.

Perhaps in the future going out without nasal filters will be considered as reckless as today it’s considered having unprotected sex with a random stranger. #NasalFilter #TheNewMask #PM2point5

April 8th 2020


Bright Neroli

Summer 2020 Unisex Perfume Recommendations:

1. Bright Neroli – Ferrari (amazing sharpness and cute Sicilian dry-down)

2. Monserrat – Bruno Fazzolari (incredible grapefruit punch and bitter-sweet resonance)

3. Born – Adidas (a cheap but highly rewarding lavender rhubarb scent).

April 21st 2020

Haven’t posted about scents in a while; I’m still actively researching this fascinating qualia variety (better do so while I still have scent qualia, which may of course go away if/when I acquire COVID-19).

I’ve developed a lot of new vocabulary to talk about scents. In particular, I like to break down a scent in terms of entropy (how close to ‘white noise scent’ it is), category distribution (% woody, citric, fruity, etc.), category-specific entropy (e.g. 70% of the way to ‘generic flowery’), specific notes (e.g. 10% rose), and of course, “special effects” (such as “creamy”, “powdery”, “bitter”, etc.).

A recent “special effect” I’ve explored is the rather peculiar feeling that the scent is “flammable”. For example, gasoline has it, and so does ethanol. It is similar to the feeling you get when you inhale nitrous oxide. A kind of fascinating gas-like intoxicated state that produces spatiotemporal confusion and a sense of resonance. Of the scents I currently have access to, 100% pure Neroli essential oil strongly triggers this particular special effect. Neroli has that strange “flammable” quality, perhaps an octave or two in pitch higher relative to gasoline. It’s equally enthralling as the smell of gasoline (for those who like it) but much more dinner-party-friendly.

Anyway, with this “flammable” special effect in mind, I’ve been exploring what can be added to it in order to create beautiful scents. Last night I found a combination that made me really happy. It consists of equal (intensity-adjusted) parts of:

  1. Neroli oil
  2. Orange essential oil
  3. Lime essential oil
  4. Pear essential oil

It is sweet, sour, and gasoline-like in an unexpectedly euphoric way. I highly recommend this quale. I very much like its vibe. Meet me there.

April 28th 2020



First I tried essential oils. Then I tried perfumes. Now I’m entering a third phase in my “scent literacy” journey: pure molecules.

I have 50 pure perfume ingredients in an air-tight container now. And I have been trying out a couple each day in a systematic way in order to map out the state-space of scents.
One core insight so far:

Essential oils are extremely rough approximations for “building blocks” of scents. Perfume notes are often described in terms of fruits, woods, flowers, animalic sources, etc. But “apple” is not a natural unit of scent qualia. Although there is a general “apple vibe”, in reality that vibe can come from any of 20 or so different molecules. Additionally, many molecules that have an apple vibe do not even appear in biological apples (and vice versa). I’ve so far tried two apple-vibe molecules:

  1. Alpha Damascone: The smell of a dried out green apple, slightly past its prime, unsweetened and with trace amounts of beeswax wrapper stuck to its skin.
  2. 5-octen-1-ol: The smell of extremely mild refrigerated apple sauce, slightly waxy, reminiscent of sandalwood, and at a slightly higher “phenomenal frequency” than damascone.

In other words, I’m learning that pure molecules are indeed more “simple” than essential oils by far. They feel very specific and low-dimensional rather than voluptuous and scenic. But despite their relative simplicity, they are still not “categorically pure”. A single molecule can smell woody, fruity, and camphorous all at the same time. Part of the story is likely that a single molecule can have a broad spectrum of receptor affinities. But even if only one scent receptor were to be activated, perhaps the resulting experience would also not be uni-categorical.

The fascinating implication here is that scents that feel very uni-categorical (e.g. pear essential oil being unequivocally “fruity” with no hint of floral or woody) are more likely to be compositions of many molecules!

Each uni-categorical accord is made by mixing many molecules that all share the same “main vibe” but have different “secondary traits”. This way the accord lets the secondary traits “cancel out in white noise scent” while the main vibe is additively compounded into a broad-spectrum power-punch of a single category, like fruity (reminiscent of “scent factorization”, which I’ve described in previous posts).

May 2nd 2020

You don’t need to be phenomenally rich in order to be phenomenally rich!

I’m an advocate of high-dose behavioral enrichment (I talk about it at 22:16):

May 3rd 2020

The Perfect Scent excerpt:

Ellena will dip a touche into a molecule called isobutyl phenylacetate, which smells vaguely chemical and nothing else, and another into a synthetic molecule whose common chemical name is ethyl vanillin. (A rich gourmandy vanilla molecule, its IUPAC name is 3-methoxy-4-hydroxy benzaldehyde, and it is the heart of Shalimar.) He puts the touches together and hands them to you. Chocolate appears in the air. “My métier is to find shortcuts to express as strongly as possible a smell. For chocolate, nature uses 800 molecules, minimum. I use two.” He hands you four touches, vanillin + natural essences of cinnamon, orange, and lime—each of these has the full olfactory range of the original material—and you smell an utterly realistic Coca-Cola. “With me,” says Ellena, “one plus one equals three. When I add two things, you get much more than two things.”


He will hand you a touche that he has sprayed with a molecule called nonenol cis-6, which by itself smells of honeydew melon or fresh water from a stream. He’ll then hand you a second touche with a natural lemon on it, direct you to hold them together now, and suddenly before you appears an olfactory hologram of an absolutely mesmerizing lemon sorbet.


The explicit point was not to create a thing but an illusion of that thing, an olfactory alchemy. The point of Nil was not to create a green mango but the illusion of a green mango.




Junior perfumers discover that Vetiver Huile Essentielle from Haiti smells like a Third World dirt floor and Vetiver Bourbon from Isle de la Réunion smells like a Third World dirt floor with cigar butts. (They hope to do something wonderful with the cigar butts.) They learn, as Ellena knew from decades of work, how to create the illusion of the scent of freesia with two simple molecules, both synthetics: ionone beta + linalool. And orange blossom: linalool + anthranylate de methyl, which by itself smells like aspirin. The classic Guerlain perfumes often used a molecule called styrex, which smells of olive oil pooled on a table in a chemical factory. Add phenylethylic alcohol and you get lilac. Add the smell of corpse (indoles), you get a much richer lilac. And you can give your lilac, freesia, and orange blossom a variety of metallic edges: Add allyl amyl glycolate, you get a cold metal freesia. Add amyl salycilate, and you get a freesia with the smell of a metal kitchen sink dusted with Ajax powder. Aldehyde C-12 lauric adds an iron with a bit of starch still on it.

May 8th 2020

Excerpt from Luca Turin and Tania Sanchez’s 2008 perfume guide:

Sports Fragrances:


The last decade has seen the unfortunate flourishing of a dismal genre, the fragrances for men and women who do not like fragrance and suspect that none of their friends do either. The result has been a slew of apologetic, bloodless, gray, whippet-like, shivering little things that are probably impossible, and certainly pointless, to tell apart. All fragrances whose name involves the words energy, blue, sport, turbo, fresh, or acier in any order or combination belong to this genre. This is stuff for the generic guy wishing to meet a generic girl to have generic offspring. It has nothing to do with any other pleasure than that of merging with the crowd. My fondest hope is everyone will stop buying them and the genre will perish. Just say no.


Lastly, and by way of contrast, remember that perfume is foremost a luxury, among the cheapest, comparable to a taxi ride or a glass of bubbly in its power to lift the mood without causing subsidence the morning after. Wear it for yourself.


– Luca Turin in PERFUMES: THE A-Z GUIDE (2008)

May 13th 2020

The perfume Tommy Girl just registered as an outlier to my nose. It registers as high in valence as Bleu de Chanel and Bright Neroli by Ferrari. Extraordinary perfume. 10/10 #ScentQualia

May 27th 2020

The Rainbow God Experience

One of the most interesting lines of evidence pointing in the direction of the Symmetry Theory of Valence is how in the neighborhood of the peak of high-energy neural annealing events one can often glimpse states of consciousness with a characteristic “full-spectrum of qualia” property.

This may happen nearing the peak of a strong LSD trip, during intense Jhanic concentration, Fire Kasina practice, or even just spontaneously (though extremely rarely).

At the actual peak of the annealing process you are likely to arrive at a “moment of eternity“- itself extremely high-valence- where the symmetry is so complete that it becomes impossible to distinguish between self and other, before and after, or even left and right (this is a phenomenal property of peak valence states, and not proof of Open Individualism and non-duality per se, even though most people tend to interpret such experiences that way).

The “Rainbow God” phenomena lives at the edge of such peak valence states.

Timothy Leary in “The Psychedelic Experience” says that as you approach the highest bardo you are given the choice between “tasting sugar” and “being the sugar”.

The former is close to the peak of the annealing process, where there is enough asymmetry in the state for you to be able to encode information and distinguish between past and future, self and other, etc. and thus able to experience a projective world-simulation and the illusion of a self that “experiences it”. At the top of the annealing process, however, the extreme symmetry does not allow you to do that. The valence is almost certainly higher, though the degree of consciousness is arguably lower. You are “the sugar” rather than “tasting the sugar” (i.e. you are luminosity rather than a constructed world-simulation “experiencing luminosity”).

Stunningly, this edge between perfect symmetry and its surroundings in configuration space often shows extreme levels of qualia diversity. This is an empirical observation you can verify for yourself (or you can trust me, find others who have experienced it, or derive it from first principles).

What is it like? At this boundary between quasi-perfect symmetry and perfect symmetry you experience rainbows with all the phenomenal colors in the CIELAB color space (and perhaps some other colors that you only see in heaven, like blue-yellow and red-green, which require enough energy to overcome the lateral-inhibition opponent process going on in the cortex at all other times). You experience a sense of “all possible temporalities”. A sense of “all possible scents”. And a sense of all possible spatial relationships at once.
If you get any closer to the peak of annealing, the rainbows collapse into luminosity, the scents into a sense of presence, the temporalities into a sense of eternal now, and the possible feelings of space into a projective-less “view from nowhere”. The combination of all qualia values of each qualia variety somehow, incredibly, seem to add to zero. But not any kind of zero. A special “Zero” perhaps equivalent to “no information but awake”. (Cf. David Pearce’s Zero Ontology for a possible grounding of this state in fundamental physics.)

Yes, this is very much a real state of consciousness. It is profound, and extremely important.

I call it the “Rainbow God” state of mind. I do not know how to reliably induce it, but I do know that it is likely to have extremely deep computational, ethical, and experiential properties capable of advancing our understanding of the nature of the state-space of consciousness. I just figured you should know this exists.

June 2nd 2020

Andreas Keller • Olfaction and Experiential Authenticity:scent_presentation

Really excellent presentation about the biological and physical underpinnings of scent. It’s a bit on the long end (50 minutes) but you can get 80% of it by just watching the first 12 minutes. It’s really good! So much information…

For instance: did you know there are about 400,000 scented flower species in the world? I struggle to come up with more than 30 flowers off the top of my head (up from 5 just less than a year ago). The remaining 399,970? Who knows what they smell like. We don’t have words for these smells… is it “rose” or “jasmine” smell? Good luck using that kind of ontology describing the space of possible flower smells.

Also: it turns out that volatile molecules don’t diffuse very effectively. So that’s why you get “whiffs” of scents – for the most part, in the wild, air is a very non-homogeneous gas, with all kinds of pockets with specific linear combinations of aromachemicals. Hence why holding two essential oils side by side doesn’t give rise to a proper mixture between them. You need to literally mix the oils and then smell the mixed result if you want to actually know what the combination is like. Otherwise you will get a whiff of one, a whiff of the other, etc. with a Poisson-like distribution. This also reminds me that: we have an olfactory bulb in each nostril! So if you apply one scent in one nostril and another scent in the other nostril, you will get a kind of “bi-scent rivalry” [binosmic?] similar to what you get when you see one image with the left eye and one image with the right eye (i.e. “binocular rivalry”).

I do think that “digital smell” is possible (unlike the presenter). But it will require us to describe each molecule in terms of their ADSR patterns for each of the basic scent qualities (that is, to describe how the sweetness develops across time – its attack, decay, sustain, and release – and do the same for each core qualia scent dimension). Without taking into account the ADSR envelope for each molecule, the mixtures will be uneven.

The lowest-hanging fruit would be to use a non-negative least squares regression that minimizes the error for the envelope of each of the core qualia scent dimensions. Hence, the molecular spectrum is not enough – the non-negative least squares requires pattern-matching across the entire temporal envelope of each dimension. IF we do this – then digital smells might be possible after all (IMO!).

June 3rd 2020

There are a TON of questions whose real answer is: “Bleu De Chanel”. Think about it.

That’s how VAST the multiverse is.

“Bleu De Chanel” spans eons and eons of subjective time – the grapefruit/incense/amber vibe ringing on and on throughout eternity. That’s how large it ALL is.


You can get a powerfully believable Smirnoff Lime impression with as little as a few drops of citral and aldehyde C-12 in an ethanol + water mixture. Amazing what passes as a “fine drink” these days.

“At least add some linalool to make it worth it” – would be my recommendation.


Note to self: by virtue of their sharp smell, aldehydes are powerful high-frequency psychoactives.

June 6th 2020

Note to self: Smelling a bunch of aldehydes over and over for several days in a row causes bad headaches. Use them only occasionally from now on.

June 13th 2020

I asked a DMT being about the nature of scent qualia. Its response: “One hint: are you sure it’s only one kind of qualia?”

An insight came like a lightning bolt. Yes! Two types:

  1. Aromachemicals that are “character impact”
  2. Flavor-like vibes

Totally different state-spaces!

Luca Turin, the quantum neurobiologist who has done research on the vibration theory of olfaction (showing “we can smell functional groups”) told me that if perfumes are tomato soups, the money is in “making the best cream” rather than in the “tomatoes”. Character impact!

Examples of character impact molecules:

  1. Beta-ionone
  2. Iso-E-Super
  3. Ambroxan
  4. Hedione
  5. Helional

Examples of flavor-like vibe molecules:

  1. Alpha-damascone (beautiful!)
  2. Aldehyde C-12
  3. Citral
  4. Cis-3-hexanyl-benxoate (yuk!)
  5. Verdalia

June 20th 2020


Magenta: The Non-Spectral Color

An important point of confusion about qualia to which I offer a clarification:

The qualia you experience as a result of light coming into your eyes can be logically and empirically dissociated from physical light. Color qualia, just as much as visual texture qualia, can be triggered by auditory stimuli in people with synesthesia, or people tripping. More so, you don’t even need light to ‘see’ in your dreams. Visual qualia is ultimately not intrinsically tied to physical light. Phenomenal light, as it were, is a particular spatial qualia that we use to ‘illuminate’ our inner world simulations. Yet this illumination is not based on photons.

Hence the mystery of magenta: phenomenal colors don’t always map on to frequencies of light. Even leaving aside the issue of metamerism, magenta itself is a ‘non-spectral color’ because you need to combine at minimum two frequencies of light to trigger that color qualia in your visual field (namely, a combination of the upper and lower frequencies you can detect).

Why do we experience color qualia from light, then? This is not out of logical necessity, but rather, because it happens to have the appropriate information processing properties for the mapping to be evolutionarily advantageous. The state-space of color and visual texture happen to have useful isomorphisms to the structure of visual data. But there is nothing to suggest they are the best at representing ‘projective data-structures’.

In fact, I strongly suspect that once we master free-wheeling hallucinations and qualia control techniques, we will discover new applications of exotic qualia varieties for information processing purposes. Such as, for instance, using complex synesthetic representations of natural numbers that make it easy to ‘feel’ whether a 10-digit number is prime or not.

Anyhow, this all informs the kind of answer I might give to the question “what is it like to be a bat?”. In particular, it compels me to say that for all we know echolocation information is represented with scent qualia. We simply don’t know enough about the information-theoretic properties of state-spaces of qualia varieties to make an educated guess for what kind of qualia is best at representing echolocation information.

And more so, even if you were to train a human to use echolocation from birth, there is no guarantee that the qualia varieties and the associated state-spaces their brain would recruit for that task would have anything to do with bat echolocation qualia. So the problem has more moving parts than is usually assumed.

June 28th 2020

“Son, there is something I’ve been meaning to tell you for a long time, but only now I’m brave enough to do so: I just don’t think aromatic Fougères are a good fit for you. Based on my experience, I think Chypres would fit you better. Or even some woody citruses. Not Fougères.”

July 16th 2020

I love smelling dirty every once in a while.Photo on 7-16-20 at 3.59 PM

July 19th 2020

If you have a prejudice against the smell of single molecules because they are “too simple” and you need some “entourage effect” balanced blend “only nature can provide”… try smelling Agrumen Aldehyde Light. A single molecule that smells like a full perfume!

Soapy lime herbal!

July 22nd 2020

Freesia is 90% linalool and 3% beta-ionol. I suppose that’s why my 50%/50% mixtures weren’t quite Freesia-like.

July 24th 2020

Vimalakīrti then asked the bodhisattvas from the Host of Fragrances [world], “How does Accumulation of Fragrances Tathāgata explain the Dharma?”


Those bodhisattvas said, “In our land the Tathāgata* explains [the Dharma] without words. He simply uses the host of fragrances to make the gods and humans enter into the practice of the Vinaya. The bodhisattvas each sit beneath fragrant trees, smelling such wondrous fragrances, from which they attain the ‘samādhi of the repository of all virtues.’ Those who attain this samādhi all become replete in the merits of the bodhisattva.”


– Chapter X – The Buddha Accumulation Of Fragrances

[*Tathāgata is an honorable name for the Buddha of a realm.]

July 30th 2020

Emergent scents – when you combine two or more aromachemical cocktails and you get as a result a scent that is different than the sum of its parts.

I have in the past found a number of essential oil combinations that do this (pear + violet, pomegranate + honeydew, lemon + lavender). But I figured that it’s much better to try to identify clear cases of this phenomenon by combining pure molecules.

So this little “research program” I have going on is to find pairs of aromachemicals and then mix them in many different ratios and smell the results (usually dissolved in ethanol at a concentration of ~20%). So far, it seems that about ~25% of pairs of molecules I’ve tried result in emergent scents. Here are some specific examples (please feel free to try at home and verify!!):

1) Humulene + d-limonene: Humulene smells herbal and earthy, d-limonene smells like orange or mandarin. When the ratio is ~4:1 I get an emergent scent that I can only describe as “classic chewing gum flavor”, completely distinct and phenomenally richer than the ingredients alone.

2) Linalool + beta-ionone: linalool smells like a very gasoline-like volatile version of a flower scent, beta-ionone is the classic “violet scent” molecule. When combined in 9:1 ratio I get an emergent scent that is like that of a citrus version of freesia or peony.

3) Humulene + vanillin: vanillin is the smell of vanilla, which is watery at the onset (attack and decay) and creamy on the second half (sustain and release). When combined in 1:1 ratio you get a completely new scent that feels close to a dried out old tobacco Cuban cigar blended with coffee liqueur.

That last one is also relatively close to the classic combination of vanilla + vetiver. Luca Turin told me that the perfume called Habanita is precisely playing with a vanilla/vetiver combo, which at first sniff comes across as a completely new and unrecognizable (yet very pleasant) scent. He said that a wonderful metaphor for this phenomenon is like the song Loro by Gismonti, where in the second half the piano and the flute play in such a synchronized fashion that you get the impression that there’s a new instrument involved. I’ve been smelling vanilla/vetiver while listening to this song. It’s quite beautiful.


Humulene combined with d-limonene create an emergent “missing fundamental” type olfactory illusion of classical chewing gum flavor. It only works when Humulene is between 70% and 90% of the mixture (before adding ethyl alcohol). Cleanest example of “emergent scent” I’ve found.

Humulene is a simple scent of the category “earthy”, roughly similar to a vetiver essential oil but “one octave higher”. It also has a very mild musky undertone.

D-limonene is an orange/lemon-like scent. Extremely common in perfumery. Chances are something you ate today has it.

July 31st 2020

The simplest example I can think of to illustrate what an “emergent scent” is comes from the auditory illusion called “the missing fundamental”.

If you play 200 hertz together with 300 hertz and 400 hertz you will hallucinate an emergent 100 hertz tone.

The 100 Hz tone is not there! But it is quite real in your experience.

Of course if you are very acquainted with this auditory effect, you might notice the fundamental (100hz) is a bit fainter than expected, and infer it’s an illusion. But it is nonetheless very much present in your experience.

Likewise, when you smell Humulene + Vanillin at a 1:1 ratio you will get a third smell that emerges as a sort of gestalt that “bridges together” the two underlying notes.

You can probably infer the input scent is made up of two notes if you are really experienced with this kind of phenomenon. But the third note, the gestalt, does not disappear when you have “reduced” it to the two underlying notes. It’s still there. Thus, really, the whole is greater than the sum of its parts.


Hear the effect yourself: Missing fundamentals. Periodicity and Pitch

August 1st 2020

I like my coffee how I like my perfumes: with the fewest chemicals needed to cause the desired effect.

As an aside, learning about emergent effects in low-entropy perfume recipes makes me think that there could probably be a job for “scent simplification”. Namely, take something like cacao, with hundreds of molecules contributing to its characteristic scent. The question is: what is the minimum viable number of aromachemicals you can use to replicate it (within a Just Noticeable Difference unit)?

I suspect most natural scents that come from a complex entourage effect have relatively minimalistic reconstructions. A question that also emerges is: what is the most complex scent? I.e. what is the smell whose minimum reconstruction has the maximum number of molecular diversity?

[It’s important to distinguish between molecular entropy and phenomenal entropy. A solution of Agrumen Aldehyde Light and ethanol has low molecular entropy but pretty high phenomenal entropy, whereas a “lime accord” made of tens of molecules could be high in molecular entropy yet low in phenomenal entropy because it smells very cleanly like a ‘single note’]


A master perfumer like Ellena has memorized hundreds, if not thousands, of recipes for manufacturing smells. Many complex natural scents can be conjured with only a few ingredients. The scent of freesia, he explained, is created by combining two simple molecules: beta-ionone and linalool, both synthetics. (To give freesia a cold, metallic edge, a touch of allyl amyl glycolate is added.) The smell of orange blossom is made by combining linalool and methyl anthranilate, which smells like Concord grapes.


In my presence, Ellena once dipped a touche into a molecule called isobutyl phenal acetate, which has a purely chemical smell, and another touche into vanillin, a synthetic version of vanilla. He placed the two paper strips together, waved them, and chocolate appeared in the air. “My métier is to find shortcuts to express as strongly as possible a smell,” he explained. “For chocolate, nature uses eight hundred molecules. I use two.” He handed me four touches—vanillin plus the natural essences of cinnamon, orange, and lime. The combined smell was a precise simulation of Coca-Cola. “With me, one plus one equals three,” Ellena said. “When I add two things, you get much more than two things.”


The Scent of the Nile: Jean-Claude Ellena creates a new perfume.
– By Chandler Burr

August 5th 2020

Imagine you have been a musician for your village all your life. You play drums and acoustic guitar and you have never heard modern music. One day you are gifted an iPod and you listen for the first time to the crazy sounds of psychedelic trance. For the first time in your life you experience the wonders of reverb, flanging, distortions, and FM-synthesis. Surely this gives you a sense that your conception of music only tapped into a tiny fraction of what had always been possible.

An analogy could be made with smells: having tried essential oils one gets the impression of understanding what is possible in the realm of scents. But one day you discover Galaxolide, hedione, and eso E super. Like reverb and FM-synthesis in sound, these compounds are capable of giving surreal, unexpected, and space-warping properties to scents (much like reverb in sound, they are character impact molecules, meaning that they modify the presentation of other scents more than contributing a ‘flavor’ of their own).

Galaxolide in particular is something you have probably smelled, either in perfumes or detergents, but it really only becomes clear just how insane of a substance it is when you smell it raw. I associate it with “DMT Realm Aesthetics” – like a smell coming from another planet where hyperdimensional experiences are common everyday events, and the world of the arts uses exotic phenomenal time routinely. It has a vibe I can only describe as “having already always been here yet just arrived”. It’s probably what traveling in time feels like when you are in a transcendent Bardo between lifetimes.


Pellwall describes galaxolide thus: “Galaxolide is an isochroman musk, that has an odour profile that is liked by most people and is similar to a macrocyclic musk. It is strong, clean smelling and a good fixative. It combines well with other musks and is often used in combinations.”

In wikipedia, they describe the scent as: “a synthetic musk with a clean sweet musky floral woody odor”.

I think the musk-like quality accounts for maybe 60% of its effect. But I swear there is something much more special about it than just a clean musk. It has a kind of time-dilation effect, and it seems to my nose as a “musk but high-dimensional”. Perhaps it’s musk + the harmonics of musk. So while other musks are just a single note, galaxolide is like the feeling of a musky accordion.


I’ll write about my setup for doing this kind of research, but suffice to say that it’s super cheap if you know what you are doing. Each experiment (i.e. a little bottle with a few ml of a new combination in precise proportions) costs me about ~30 cents to make, all things considered (the cost of the materials, the ethanol, the pipettes, the bottle).

I highly recommend just getting a 2ml sample vial. It can cost as little as $2.16 (plus shipment) here: Galaxolide.

Other stellar molecules to try out to expand your conception of what’s possible:

Linalool, dihydro linalool, alpha-damascone, damascenone, helional, C-16 aldehyde (strawberry), agrumen aldehyde light, farnesene, nerolione, and alpha-ionone. All of that can cost you as little as $30. Not a bad price for expanding your “sense of what’s possible”.


I so wish I had a “DMT-smell accord” to use as a note in perfume compositions.

There is this one here meant to evoke the hallucinogenic state, but reportedly it has nothing to do with the actual scent of DMT, which I find very disappointing. I will try to find the way to emulate the scent of it – I suspect that linalyl acetate and coranol could be part of the compounds making up that accord. I’ll let you know if I manage to make anything vaguely resemblant of that scent.375x500.59536

August 14th 2020

Lemon Lavender World

One of the first essential oil combinations I fixated upon was that of lemon plus lavender. You could say it is the “speedball” equivalent of essential oil combos, for it relaxes and excites at the same time. I figured that trying to “understand” the “lemon-lavender world” would be a good exercise in the quest of mapping out the state-space of scents.


Lemon Lavender experiments

I currently have six different lemon essential oils from different brands and places, and seven lavender essential oils. To my surprise, the variability is very substantial. The lemon essential oils range from extremely sour and astringent to sweet and waxy. The lavenders I have also have many different qualities: some are very oily and flavorful, while others are particularly camphorous. Which of the qualities are “essential” for lemon and lavender is surely a matter of convention, though I also think they point to roughly objective attractors – the citrus sharpness of lemon rings high and has a cascading sourness that can be used for waking up the senses, whereas lavender has a narcotic entrancing reverb effect. My quest to understand, and ultimately create, lemon lavender smells was not defined in terms of merely reconstructing the standard natural smells, but as an attempt at understanding how these two qualities interact at the phenomenal level.

The diversity of lemon and lavender oils means that the space of possible combinations is even larger. Of the 42 possible combinations of one lavender oil and one lemon oil I have some are far more blissful and rich than others. I picked a few of my favorite ones to use as “model lemon-lavenders” to try to emulate.

Starting in the spirit that in order to deeply understand a scent I have to be able to construct it from scratch- so that I understand how each piece contributes to the whole- I set myself the goal of creating both lemon and lavender accords and then exploring their combinations. All starting from raw aromachemical ingredients, of course:

Making a Lemon Accord

I have always wanted to know what makes citrus fruits smell the way they do. Empirically, both isomers of limonene are a key piece of the puzzle. For instance, both lemon and mandarin oil have upwards of 80% limonene. Alas, if you smell limonene alone, you will notice it is somewhat one-dimensional in character. It IS pointing in the direction of “citrus” quite clearly, but on its own is indisputably too simple to evoke a real lemon scent.

I had a false start: aldehydes. Aldehyde C-8 through C-15 are all “extremely high-pitch scents”. They give a sharp edge to perfumes like Chanel No. 5 and the like. But they are very hard to use – partly because they are extremely potent. So for a couple of days I worked with combinations of citral and aldehydes that had, though a somewhat citric quality, mostly headache-inducing effects. I ended this series of experiments when I got a headache that lasted 24 hours (this goes to show how far I am willing to go to understand that sweet, sweet lemon qualia).

Taking a step back, I decided to explore a different angle. Valencene (note the great name) is very similar to limonene, except slightly lower in pitch. When mixed in equal proportions with limonene one gets a richer, more believable citrus scent – both molecules seem to say the same thing but in a slightly different voice, which results in a kind of chorus effect (unlike merely doubling the volume of a single voice). Alas, at this point the scent is still a bit flat, and not particularly lemon-like relative to near-enemy citrus fruits like the good old orange, mandarin, or grapefruit.

I recall being very puzzled by the scent of lime, as it seems like a kind of “super lemon” when it comes to its high-pitched sour and astringent character. And no matter how much I tried mixing citrus-like aromachemicals, I found it hard to get any hint of lime in the results. That is until I discovered that lime oil has a great deal of alpha- and beta-pinene. These are molecules that are primarily found in trees (in pines!) and smell very woody. As it turns out, to turn a citrus smell into an outright lime scent you need to add woody molecules. In retrospect, this was always hidden in the name: Lemon + Pine = Lime. After having this insight, I realized that even lemon requires a bit of alpha- and beta-pinene to distinguish it from orange scent.

After a lot of trial and error, the most convincing minimalistic lemon scent I identified is (numbers represent parts):

3 D-Limonene
3 Valencene
1 Citral
2 Linalool
1 Alpha-Pinene
1 Beta-Pinene
1 Nerolione (optional; for a rindy effect)

Making a Lavender Accord

This turned out to be more difficult than making a lemon accord. I think this is not only me: I also own two “fragrance oils” (those products that are advertised in the same context as essential oils, yet in the fine print reveal they are not at all natural, and instead are synthetic reconstructions) of lavender, and neither of the two smell anything like lavender. So I wouldn’t be the first to fail.



Linalool is a key ingredient of lavender, making up about 30% to 50% of most lavender essential oils. This is a very powerful aromachemical that seems to work as a gasoline-like fuel amplifier and modifier for any other scent (“there is no boring ten-carbon alcohol” – Luca Turin). It is also one of the things that makes lavender so narcotic and entrancing. On its own it is already quite interesting. But it is only one of the voices in lavender.

Then you have linalyl acetate, which makes up between 0% and 30% of lavender oil, depending on the species, place of origin, and time of harvest. Linalyl acetate has a “dry” quality, which I associate with “salt” (in fact if you just add this to the lemon accord above you get a smell I would describe as “salted margarita cocktail”). Alpha and beta pinene also play a role in lavender.

Interestingly, a lot of lavender oils also have up to 10% of camphor, which contributes to its narcotic get-well-soon cozy quality. Alas, it is hard to work with this material, and it always smells too synthetic to me. I found that instead I could double-down on beta-pinene, which is more camphorous than alpha-pinene (which is more earthy), and does the job quite nicely.

Finally, centifoleather, farnesene, and various alcohols like coranol can give “flavor” to the accord. In the end, I’ve settled on a minimalistic (but I think effective) arrangement. It does not quite hit the flavor of lavender, but I think does a good job at evoking its “character impact”:

4 Linalool
1 Alpha-Pinene
4 Beta-Pinene
2 Linalyl Acetate
3 Farnesene

Putting It All Together

Ultimately, adding these two accords (and their variations) together does not always produce the best results, as some aromachemicals are repeated and the proportions that give rise to the desired interactions can be scrambled by the combination. This, by the way, is a general reason why synthetic combinations span a much larger space of possible scents. In brief, because to make reconstructions with natural oils you are constrained by non-negative least squares methods, and many combinations may simply be inaccessible that way.

Anyhow – with the combination, I found that adding some character impact molecules like abroxan and helional was important to create a “bridge” between the two phenomenal characters. Alpha-ionol also seems to do something good here that is hard to put your finger on. But I think it’s that it adds the right kind of waxy rindy effect (which it has some of) in a way that does not make the mixture feel “dry” (which more classically citrus waxy smells like nerolione inevitably do). So the end result has some of these three molecules.

I am happy to say that the best lemon lavender reconstruction so far is about as good as the median natural lemon lavender mixture. It is not as good as the best lemon lavender oil mixture, though, but it is a start. I still expect to perfect it quite a bit before unleashing it into the world.

Ladies and gentleman, I present to you Lemon Lavender World:

1 Citral
3 D-Limonene
3 Valencene
4 Linalool
1 Alpha-Pinene
4 Beta-Pinene
2 Linalyl Acetate
2 Helional
3 Farnesene
1 Ambroxan
2 Alpha-Ionol
80 Ethanol


Previous experiments
Marking the interesting ones to keep
Reference bottles of pure chemicals (and one chypre accord)

That Time Daniel Dennett Took 200 Micrograms of LSD (In Another Timeline)

[Epistemic status: fiction]

Andrew Zuckerman messaged me:

Daniel Dennett admits that he has never used psychedelics! What percentage of functionalists are psychedelic-naïve? What percentage of qualia formalists are psychedelic-naïve? In this 2019 quote, he talks about his drug experience and also alludes to meme hazards (though he may not use that term!):

Yes, you put it well. It’s risky to subject your brain and body to unusual substances and stimuli, but any new challenge may prove very enlightening–and possibly therapeutic. There is only a difference in degree between being bumped from depression by a gorgeous summer day and being cured of depression by ingesting a drug of one sort or another. I expect we’ll learn a great deal in the near future about the modulating power of psychedelics. I also expect that we’ll have some scientific martyrs along the way–people who bravely but rashly do things to themselves that disable their minds in very unfortunate ways. I know of a few such cases, and these have made me quite cautious about self-experimentation, since I’m quite content with the mind I have–though I wish I were a better mathematician. Aside from alcohol, caffeine, nicotine and cannabis (which has little effect on me, so I don’t bother with it), I have avoided the mind-changing options. No LSD, no psilocybin or mescaline, though I’ve often been offered them, and none of the “hard” drugs.


As a philosopher, I have always accepted the possibility that the Athenians were right: Socrates was quite capable of corrupting the minds of those with whom he had dialogue. I don’t think he did any clear lasting harm, but it is certainly possible for a philosopher to seriously confuse an interlocutor or reader—to the point of mental illness or suicide, or other destructive behavior. Ideas can be just as dangerous as drugs.


Dennett Explained by Brendan Fleig-Goldstein and Daniel A. Friedman (2019)

It would be quite fascinating to know what Dan would say about lived psychedelic states. With that in mind, here is an essay prompt originally conceived for GPT-3 to satisfy our curiosity:

And after seeing some surprising empirical results with his heterophenomenological methods when examining the experience of people on psychedelics, Daniel Dennett decided to experience it for himself by taking 200 micrograms of LSD. The first thing he said to himself as he felt the first indications of the come-up was…


Maggie and Anders

Maggie Wassinge and Anders Amelin (QRI Sweden volunteer coordinators and content contributors – see letters I & II, letters III, IV, V, & VI, and letters VII, VIII, & IX) decided to give it a go first. We shall then compare it with what GPT-3 can come up with at a later point.

In a way, what you are about to read can be thought of as Anders & Maggie’s simulation of a hyper-intelligent GPT-3-like system’s simulation of a hypothetical Daniel Dennett on LSD. So many layers, I know. But the results speak for themselves:

Dan says: Correlation is all that is needed. So what states a mind uses for modeling conditions of importance to it, is fundamentally arbitrary. Like with language. Words represent things to humans but there are many languages, and words do not resemble what they represent. They only correlate with what they represent, and the correlation needs to be learned. To do science about the mind, one does not need to attach any special weight to any conscious state of mind over any other. One person’s hope may be another person’s despair. These “qualia” are like internally projected hypo-languages which are different all over the map, if there were one. In fact there cannot be an interpersonal map of what things feel like personally. Only naïve people could hope for a fundamental linguistics of consciousness, as if these states were to constitute a universal language of some ground truth of the mind. Silly. Romantic. It’s all arbitrary. For the record, I never said subjective experiential states do not exist. People misrepresent me on that. What I am saying is that it will never be possible to scientifically map what the state that a word such as, for instance, “green”, translates to feels like by the brain of a given individual. My green could be your red.cielab-lch-color-tolerancing-methods

Just drop the whole idea of trying to map the state-space of qualia. That is my position. Or at least I know it is, logically. Right now I begin to notice how everything intensifies and becomes somehow more salient. More revealingly “real”. As I reflect on the notion of how “states” correlate, a humorous episode from my undergraduate student life so long ago, is brought to the surface. At Wesleyan it was, where I was taking a course in Art Appreciation. The lecturer was showing a slide of a still life. A bowl of fruit it was, conspicuously over-ripe. Pointing at one of the fruits, saying “Can anyone tell me what state this peach is in?” There was silence for about three seconds, then one student exclaimed: “Georgia”. Everyone laughed joyfully. Except me. I never quite liked puns. Too plebeian. Sense of humor is arbitrary. I believe that episode helped convince me that the mind is not mysterious after all. It is just a form of evolved spaghetti code finding arbitrary solutions to common problems. Much like adaptations of biochemistry in various species of life. The basic building blocks remain fixed as an operative system if you will, but what is constructed with it is arbitrary and only shaped by fitness proxies. Which are, again, nothing but correlations. I realized then that I’d be able to explain consciousness within a materialist paradigm without any mention of spirituality or new realms of physics. All talk of such is nonsense.Daniel_dennett_Oct2008

I have to say, however, that a remarkable transformation inside my mind is taking place as a result of this drug. I notice the way I now find puns quite funny. Fascinating. I also reflect on the fact that I find it fascinating that I find puns funny. It’s as if… I hesitate to think it even to myself, but there seems to be some extraordinarily strong illusion that “funny” and “fascinating” are in fact those very qualia states which… which cannot possibly be arbitrary. Although the reality of it has got to be that when I feel funniness or fascination, those are brain activity patterns unique to myself, not possible for me to relate to any other creature in the universe experiencing them the same way, or at least not to any non-human species. Not a single one would feel the same, I’m sure. Consider a raven, for example. It’s a bird that behaves socially intricately, makes plans for the next day, can grasp how tools are used, and excels at many other mental tasks even sometimes surpassing a chimpanzee. Yet a raven has a last common ancestor with humans more than three hundred million years ago. The separate genetic happenstances of evolution since then, coupled with the miniaturization pressure due to weight limitations on a flying creature, means that if I were to dissect and anatomically compare the brain of a raven and a human, I’d be at a total loss. Does the bird even have a cerebral cortex?03-brai-diagram

An out of character thing is happening to me. I begin to feel as if it were in fact likely that a raven does sense conscious states of “funny” and “fascinating”. I still have functioning logic that tells me it must be impossible. Certainly, it’s an intelligent creature. A raven is conscious, probably. Maybe the drug makes me exaggerate even that, but it ought to have a high likelihood of being the case. But the states of experience in a raven’s mind must be totally alien if it were possible to compare them side by side with those of a human, which of course it is not. The bird might as well come from another planet.Head_of_Raven

The psychedelic drug is having an emotional effect on me. It does not twist my logic, though. This makes for internal conflict. Oppositional suggestions spontaneously present themselves. Could there be at least some qualia properties which are universal? Or is every aspect arbitrary? If the states of the subjective are not epiphenomenal, there would be evolutionary selection pressures shaping them. Logically there should be differences in computational efficiency when the information encoded in qualia feeds back into actions carried out by the body that the mind controls. Or is it epiphenomenal after all? Well, there’s the hard problem. No use pondering that. It’s a drug effect. It’ll wear off. Funny thing though, I feel very, very happy. I’m wondering about valence. It now appeals strongly to take the cognitive leap that at least the positive/negative “axis” of experience may in fact be universal. A modifier of all conscious states, a kind of transform function. Even alien states could then have a “good or bad” quality to them. Not directly related to the cognitive power of intelligences, but used as an efficient guidance for agency by them all, from the humblest mite to the wisest philosopher. Nah. Romanticizing. Anthropomorphizing.

36766208_10160731731785637_6606215010454601728_oFurther into this “trip” now. Enjoying the ride. It’s not going to change my psyche permanently, so why not relax and let go? What if conscious mind states really do have different computational efficiency for various purposes? That would mean there is “ground truth” to be found about consciousness. But how does nature enable the process for “hitting” the efficient states? If that has been convergently perfected by evolution, conscious experience may be more universal than I used to take for granted. Without there being anything supernatural about it. Suppose the possibility space of all conscious states is very large, so that within it there is an ideally suited state for any mental task. No divine providence or intelligent design, just a law of large numbers.

The problem then is only a search algorithmic one, really. Suppose “fright” is a state ideally suited for avoiding danger. At least now, under the influence, fright strikes me as rather better for the purpose than attraction. Come to think of it, Toxoplasma Gondii has the ability to replace fright with attraction in mice with respect to cats. It works the same way in other mammals, too. Are things then not so arbitrarily organized in brains? Well, those are such basic states we’d share them with rodents presumably. Still can’t tell if fright feels like fear in a raven or octopus. But can it feel like attraction? Hmmm, these are just mind wanderings I go through while I wait for this drug to wear off. What’s the harm in it?

Suppose there is a most computationally efficient conscious state for a given mental task. I’d call that state the ground state of conscious intelligence with respect to that task. I’m thinking of it like mental physical chemistry. In that framework, a psychedelic drug would bring a mind to excited states. Those are states the mind has not practiced using for tasks it has learned to do before. The excited states can then be perceived as useless, for they perform worse at tasks one has previously become competent at while sober. Psychedelic states are excited with respect to previous mental tasks, but they would potentially be ground states for new tasks! It’s probably not initially evident exactly what those tasks are, but the great potential to in fact become more mentally able would be apparent to those who use psychedelics. Right now this stands out to me as absolutely crisp, clear and evident. And the sheer realness of the realization is earth-shaking. Too bad my career could not be improved by any new mental abilities.Touched_by_His_Noodly_Appendage_HD

Oh Spaghetti Monster, I’m really high now. I feel like the sober me is just so dull. Illusion, of course, but a wonderful one I’ll have to admit. My mind is taking off from the heavy drudgery of Earth and reaching into the heavens on the wings of Odin’s ravens, eternally open to new insights about life, the universe and everything. Seeking forever the question to the answer. I myself am the answer. Forty-two. I was born in nineteen forty two. The darkest year in human history. The year when Adolf Hitler looked unstoppable at destroying all human value in the entire world. Then I came into existence, and things started to improve.

It just struck me that a bird is a good example of embodied intelligence. Sensory input to the brain can produce lasting changes in the neural connectivity and so on, resulting in a saved mental map of that which precipitated the sensory input. Now, a bird has the advantage of flight. It can view things from the ground and from successively higher altitudes and remember the appearance of things on all these different scales. Plus it can move sideways large distances and find systematic changes over scales of horizontal navigation. Entire continents can be included in a bird’s area of potential interest. Continents and seasons. I’m curious if engineers will someday be able to copy the ability of birds into a flying robot. Maximizing computational efficiency. Human-level artificial intelligence I’m quite doubtful of, but maybe bird brains are within reach, though quite a challenge, too.

This GPT-3 system by OpenAI is pretty good for throwing up somewhat plausible suggestions for what someone might say in certain situations. Impressive for a purely lexical information processing system. It can be trained on pretty much any language. I wonder if it could become useful for formalizing those qualia ground states? The system itself is not an intelligence in the agency sense but it is a good predictor of states. Suppose it can model the way the mind of the bird cycles through all those mental maps the bird brain has in memory. Where the zooming in and out on different scales brings out different visual patterns. If aspects of patterns from one zoom level is combined with aspect from another zoom level, the result can be a smart conclusion about where and when to set off in what direction and with what aim. Then there can be combinations also with horizontally displaced maps and time-displaced maps. Essentially, to a computer scientist we are talking massively parallel processing through cycles of information compression and expansion with successive approximation combinations of pattern pieces from the various levels in rapid repetition until something leads to an action which becomes rewarded via a utility function maximization.


Axioms of Integrated Information Theory (IIT)

Thank goodness I’m keeping all this drugged handwaving to myself and not sharing it in the form of any trip report. I have a reputation for being down to Earth, and I wouldn’t want to spoil it. Flying with ravens, dear me. Privately it is quite fun right now, though. That cycling of mental maps, could it be compatible with the Integrated Information Theory? I don’t think Tononi’s people have gone into how an intelligent system would search qualia state-space and how it would find the task-specific ground states via successive approximations. Rapidly iterated cycling would bring in a dynamic aspect they haven’t gotten to, perhaps. I realize I haven’t read the latest from them. Was always a bit skeptical of the unwieldy mathematics they use. Back of the envelope here… if you replace the clunky “integration” with resonance, maybe there’s a continuum of amplitudes of consciousness intensity? Possibly with a threshold corresponding to IIT’s nonconscious feed-forward causation chains. The only thing straight from physics which would allow this, as far as I can tell from the basic mathematics of it, would be wave interference dynamics. If so, what property might valence correspond to? Indeed, be mappable to? For conscious minds, experiential valence is the closest one gets to updating on a utility function. Waves can interfere constructively and destructively. That gives us frequency-variable amplitude combinations, likely isomorphic with the experienced phenomenology and intensity of conscious states. Such as the enormous “realness” and “fantastic truth” I am now immersed in. Not sure if it’s even “I”. There is ego dissolution. It’s more like a free-floating cosmic revelation. Spectacular must be the mental task for which this state is the ground state!

Wave pattern variability is clearly not a bottleneck. Plotting graphs of frequencies and amplitudes for even simple interference patterns shows there’s a near-infinite space of distinct potential patterns to pick from. The operative system, that is evolution and development of nervous systems, must have been slow going to optimize by evolution via genetic selection early on in the history of life, but then it could go faster and faster. Let me see, humans acquired a huge redundancy of neocortex of the same type as animals use for avigation in spacetime locations. Hmmm…, that which the birds are so good at. Wonder if the same functionality in ravens also got increased in volume beyond what is needed for navigation? Opening up the possibility of using the brain to also “navigate” in social relational space or tool function space. Literally, these are “spaces” in the brain’s mental models.2000px-Migrationroutes.svg

Natural selection of genetics cannot have found the ground states for all the multiple tasks a human with our general intelligence is able to take on. Extra brain tissue is one thing it could produce, but the way that tissue gets efficiently used must be trained during life. Since the computational efficiency of the human brain is assessed to be near the theoretical maximum for the raw processing power it has available, inefficient information-encoding states really aren’t very likely to make up any major portion of our mental activity. Now, that’s a really strong constraint on mechanisms of consciousness there. If you don’t believe it was all magically designed by God, you’d have to find a plausible parsimonious mechanism for how the optimization takes place.

If valence is in the system as a basic property, then what can it be if it’s not amplitude? For things to work optimally, valence should in fact be orthogonal to amplitude. Let me see… What has a natural tendency to persist in evolving systems of wave interference? Playing around with some programs on my computer now… well, appears it’s consonance which continues and dissonance which dissipates. And noise which neutralizes. Hey, that’s even simple to remember: consonance continues, dissonance dissipates, noise neutralizes. Goodness, I feel like a hippie. Beads and Roman sandals won’t be seen. In Muskogee, Oklahoma, USA. Soon I’ll become convinced love’s got some cosmic ground state function, and that the multiverse is mind-like. Maybe it’s all in the vibes, actually. Spaghetti Monster, how silly that sounds. And at the same time, how true!


Artist: Matthew Smith

I’m now considering the brain to produce self-organizing ground state qualia selection via activity wave interference with dissonance gradient descent and consonance gradient ascent with ongoing information compression-expansion cycling and normalization via buildup of system fatigue. Wonder if it’s just me tripping, or if someone else might seriously be thinking along these lines. If so, what could make a catchy name for their model?

Maybe “Resonant State Selection Theory”? I only wish this could be true, for then it would be possible to unify empty individualism with open individualism in a framework of full empathic transparency. The major ground states for human intelligence could presumably be mapped pretty well with an impressive statistical analyzer like GPT-3. Mapping the universal ground truth of conscious intelligence, what a vision!

But, alas, the acid is beginning to wear off. Back to the good old opaque arbitrariness I’ve built my career on. No turning back now. I think it’s time for a cup of tea, and maybe a cracker to go with that.