What is it like to be a bat?

181 pointsposted 5 months ago
by adityaathalye

102 Comments

mistidoi

5 months ago

Somebody used this paper to make the term batfished, which they defined as being fooled into ascribing subjectivity to a non-sentient actor (i.e. an AI).

https://partiallyexaminedlife.com/2025/06/30/what-is-it-like...

GuB-42

5 months ago

> What is it like to be an LLM?

That's a question I actually asked myself.

From the point of view of a LLM, words are everything. We have hands, bats have echolocation, and LLMs have words, just words. How does a LLM feel when two words match perfectly? Are they hurt by typos?

It may feel silly to give LLMs consciousness, I mean, we know how they work, this is just a bunch of matrix operations. But does it mean it is not conscious? Do things stop being conscious once we understand them? For me, consciousness is like a religious belief. It is unfalsifiable, unscientific, we don't even have a precise definition, but it is something we feel deep inside of us, and it guides our moral choices.

HarHarVeryFunny

5 months ago

Nagel's "What is it like to be a bat?" assumes that bats are conscious, and that the question of what is the subjective experience of being a bat (e.g. what does the sense of echolocation feel like) is therefore a meaningful question to ask.

The author inventing "batfished" also believes bats to be conscious, so it seems a very poorly conceived word, and anyways unnecessary since anthropomorphize works just fine... "You've just gaslighted yourself by anthropomorphizing the AI".

nsriv

5 months ago

I love this, hope it takes off like "enhsittification" or "slop" have already.

adityaathalye

5 months ago

“I want to stay as close to the edge as I can without going over. Out on the edge you see all kinds of things you can't see from the center.”

— Kurt Vonnegut

In this sense, I think one has to aaaaaalmost be a bat in order to know what it is to be it. A fine thread trailing back to the human.

The imago-machines of Arkady Martine's "A Memory Called Empire" come to mind. Once integrated with another's imago, one is not quite the same self, not even the sum of two, but a new person entirely containing a whole line of selves selves melded into that which was one. Now one truly contains multitudes.

jm__87

5 months ago

None of us have even experienced the full range of what humans can experience, so even we don't fully know what it is like to be any given person, we only know what it is like to be ourselves. It is kind of amazing when you think about it.

edbaskerville

5 months ago

Human beings can, in fact, learn to echolocate, and they seem to experience it as vision, supported by their own descriptions and by fMRIs showing the visual cortex lighting up.

I'm not going to try to draw any inferences about consciousness from these facts. I'll leave that to others.

https://www.npr.org/programs/invisibilia/378577902/how-to-be...

HarHarVeryFunny

5 months ago

> Human beings can, in fact, learn to echolocate, and they seem to experience it as vision

Sure - although depending on how quickly one was scanning the environment with echolocation it might also feel a bit like looking around a pitch black room with a flashlight.

In any case it's essentially a spatial sense, not a temporal one, so is bound to feel more like (have a similar quale to) vision than hearing.

ericmcer

5 months ago

It makes sense given that we are just receiving light waves instead of sound. Light waves contain way more information but your brain would still come up with some kind of "visualization" based on the info. I didn't listen to the program but he might just see blobs of varying sizes instead of any kind of detailed image.

o_nate

5 months ago

The problem itself is at least centuries old, if not millennia. In his "Essay Concerning Human Understanding" (1689), John Locke phrased the same problem clearly, using different words:

"How any thought should produce a motion in Body is as remote from the nature of our Ideas, as how any Body should produce any Thought in the Mind. That it is so, if Experience did not convince us, the Consideration of the Things themselves would never be able, in the least, to discover to us." (IV iii 28, 559)

dredmorbius

5 months ago

The Ethiops say that their gods are flat-nosed and black, While the Thracians say that theirs have blue eyes and red hair. “If oxen and horses and lions had hands and were able to draw with their hands and do the same things as men, horses would draw the shapes of gods to look like horses and oxen would draw them to look like oxen, and each would make the gods' bodies have the same shape as they themselves had.

- Xenophanes, ~500 BCE

<https://www.azquotes.com/author/38174-Xenophanes>

btown

5 months ago

My favorite (and admittedly unorthodox) companion piece to Nagel's Bat, and one of my favorite literary recommendations, is Vernor Vinge's Hugo-winning 2000 novel, A Deepness in the Sky [0].

It's a hard-sci-fi story about how various societies, human and alien, attempt to assert control & hegemony across centuries of time (at times thinking of this as a distributed systems and code documentation problem!), and how critical and impactful the role of language translation can be in helping people to understand unfamiliar ways of thinking.

At the novel's core is a question very akin to that of Nagel's positivism-antipositivism debate [1]: is it possible (or optimal for your society's stability) to appreciate and emphasize with people wholly different from yourselves, without interpreting their thoughts and cultures in language and representations that are colored by your own culture?

What if, in attempting to do so, this becomes more art and politics than provable science? Is "creative" translation ethical if it establishes power relationships that would not be there otherwise? Is there any other kind?

Deepness is not just a treatise on this; it places the reader into an exercise of this. To say anything more would delve into spoilers. But lest you think it's just philosophical deepness, it's also an action-packed page-turner with memorable characters despite its huge temporal scope.

While technically it's a prequel to Vinge's A Fire Upon The Deep, it works entirely standalone, and I would argue that Deepness is best read first without knowing character details from its publication-time predecessor Fire. Note that content warnings for assault do apply.

[0] https://www.amazon.com/Deepness-Sky-Zones-Thought/dp/0812536...

[1] https://en.wikipedia.org/wiki/Logical_positivism / https://en.wikipedia.org/wiki/Antipositivism

KolibriFly

5 months ago

I like your point that translation isn't just technical, it's political. Every attempt to "bridge the gap" shapes power as much as it conveys meaning

bondarchuk

5 months ago

>"An organism has conscious mental states if and only if there is something that it is like to be that organism – something that it is like for the organism."

IMHO the phrasing here is essential to the argument and this phrasing contains a fundamental error. In valid usage we only say that two things are like one another when they are also separate things. The usage here (which is cleverly hidden in some tortured language) implies that there is a "thing" that is "like" "being the organism", yet is distinct from "being the organism". This is false - there is only "being the organism", there is no second "thing that is like being the organism" not even for the organism itself.

Al-Khwarizmi

5 months ago

I believe you're falling into a purely linguistic trap. In other languages we wouldn't even use the word "like" in this kind of constructions, that's an English thing because other wordings sound awkward, but I don't think it entails comparison.

In translations to Spanish, the article is titled "¿Qué se siente ser un murciélago?", literal word by word translation "What is felt being a bat?"

In French, "Quel effet cela fait-il d'être une chauve-souris?", literal word by word translation "What effect it makes to be a bat?"

In Chinese, "成为一只蝙蝠可能是什么样子", i.e., "To become a bat could be what feeling/sensation?"

None of these translations has a comparative word. And at least in Spanish (I won't speak about the other two because I'm not so proficient in them), using a comparative expression similar to "being like" in English ("¿A qué se parece ser un murciélago?") would sound awkward and not really convey the point. Which is why the translators didn't do so.

Of course I know that the original article is in English, but I think the author basically meant "What is felt being a bat?" and just used the "like" construction because it's what you say in English for that to sound good and clear. Your highlighted text could be rendered as "An organism has conscious mental states if and only if there is something that is felt being that organism – something that is felt by the organism." and it would be more precise, just doesn't sound elegant in English.

mtlmtlmtlmtl

5 months ago

This is the conclusion I come to whenever I try to grasp the works of Nagel, Chalmers, Goff, Searle et al. They're just linguistically chasing their own tails. There's no meaningful insight below it all. All of their arguments, however complex, all rely on poorly defined terms like "understand" "subjective experience", "what it is like", "qualia", etc. And when you try to understand the arguments with the definition of these terms left open, you realise the arguments only make sense when the terms include in their definition a supposition that the argument is true. It's all just circular reasoning.

tech_ken

5 months ago

The way I understand it the second thing is the observer of the organism, the person posing the question. The definition seems to be sort of equivalent to the statement "an entity is conscious IFF the sentence 'what is it like to be that entity' is well-posed".

"What is it like to be a rock" => no thing satisfies that answer => a rock does not have unconscious mental states

"What is it like to be a bat" => the subjective experience of a bat is what it is like => a bat has conscious mental states

Basically it seems like a roundabout way of equating "the existence of subjective experience" with "the existence of consciousness"

edit: one of the criticism papers that the wiki cites also provides a nice exploration of the usage of the word "like" in the definition, which you might be interested to read (http://www.phps.at/texte/HackerP1.pdf)

> It is important to note that the phrase 'there is something which it is like for a subject to have experience E' does not indicate a comparison. Nagel does not claim that to have a given conscious experience resembles something (e.g. some other experience), but rather that there is something which it is like for the subject to have it, i.e. 'what it is like' is intended to signify 'how it is for the subject himself'.

trescenzi

5 months ago

There is no fundamental error it’s purposefully exactly as you state. Nagel is saying that consciousness is that second thing.

antonvs

5 months ago

Do you believe that each run of a ChatGPT prompt has a conscious experience of its existence, much like you (presumably) do?

If you don't believe that, then you face the challenge of describing what the difference is. It's difficult to do in ordinary language.

That's what Nagel is attempting to do. Unless you're an eliminativist who believes that conscious experience is an "illusion" (experienced by what?), then you're just quibbling about wording, and I suspect you'll have a difficult time coming up with better wording yourself.

brudgers

5 months ago

The “something” here refers to inner experience (something similar to Kantian “aperception”.

The tricky bit is that “to be” is not an ordinary verb like fly, eat, or echo-locate. And “‘being an organism’” is — in the context of the paper — about subjective experience (subjective to everything except the organism.

To put it another way, the language game Nagel plays follows the conventions of language games played in post-war English language analytic philosophy. One of those conventions is awareness of Wittgenstein’s “philosophical problem”: language is a context sensitive agreement within a community…

…sure you may find fault with Wittgenstein and often there are uncomfortable epistemological implications for Modernists, Aristotelians, Positivists and such…then again that’s true of Kant.

Anyway, what the language-game model gives philosophical discourse is a way of dealing with or better avoiding Carnapian psuedo-problems arising from an insistence that the use of a word in one context applies to a context where the word is used differently…Carnap’s Logical Structure of the World pre-dates Wittgenstein’s Philosophical Investigations by about 25 years.

HarHarVeryFunny

5 months ago

Nagel's question "What is it like to be a bat?" is about the sensory qualia of a bat, assuming it has consciousness and ability to experience quales, which he assumes it does.

The question is not "What would it be like (i.e. be similar to) to be a bat?" which seems to be the strawman you are responding to.

biophysboy

5 months ago

I think that's why he states it as a biconditional, which makes the exclusive restriction you're arguing is necessary

sethev

5 months ago

That particular phrasing happened to catch on, but I don't think it's essential to any of the arguments. How would you phrase the distinction between objects that are conscious and objects that aren't? Or are you saying that that distinction is just a verbal trick?

KolibriFly

5 months ago

It might be one of those cases where the philosophical hook works because of its rhetorical power

bave8672

5 months ago

Related - Charles Foster has put perhaps the most effort of any individual to try to really understand what it's like to live as an animal. From the blurb or 'Being a Beast':

> He lived alongside badgers for weeks, sleeping in a sett in a Welsh hillside and eating earthworms, learning to sense the landscape through his nose rather than his eyes. He caught fish in his teeth while swimming like an otter; rooted through London garbage cans as an urban fox; was hunted by bloodhounds as a red deer, nearly dying in the snow.

https://en.wikipedia.org/wiki/Charles_A._Foster

myrmidon

5 months ago

Echolocation for humans 101:

Close eyes, make short impulse-like noise (tapping of feet can be sufficient, or snip fingers), and move slowly.

You will find that not running into walls is pretty easy.

Feedback, to me, feels like light pressure on my face. But this sense can be trained a lot; object detection and mapping your proximity is feasible for trained humans, and presumably changes the perception.

IAmBroom

5 months ago

Our hearing is more sensitive than we give it credit for being.

We used to play a game in my dojo where we'd toss a "knife" (wooden) around in a circle, as if sending it to an ally. Yes, you could throw it in a way that can't be caught... but then the person picks it up and chooses how to throw it back. You learn quickly not to be a dick about it.

Naturally, we were trying to get better at catching, and eventually moved to a trust version, where I shout "Go!" as I throw the knife. Turns out you can hear the knife leaving someone's hands more reliably than they can shout "Go!" on time.

protocolture

5 months ago

Bandit: "Hey, Bluey! You're a fruit bat!"

Bluey: "Yeah!"

Bandit: "How is it?"

Bluey: "It's great! You get to eat a lot of fruit!"

vehemenz

5 months ago

I'm less convinced with consciousness as some sort of exceptional phenomenon—and how it's been used to define the "hard problem"—but the paper is still valuable as it provides an accessible entry point into the many problems of reductionism.

ebb_earl_co

5 months ago

What brought down your level on convinced?

RS-232

5 months ago

Both consciousness and experience arise from physical means. However, they are very distinct concepts and not mutually exclusive, which can lead to confusion when they are conflated.

Sensory deprived, paralyzed, or comatose individuals can be conscious but have no means to experience the outside world, and depending on their level of brain activity, they might not even have an "inner world" or mind's eye experience.

Anything that is able to be measured is able to experience. A subject like an apple "experiences" gravity when it falls from a tree. Things that do not interact with the physical world lack experience, and the closest things to those are WIMPs (weakly interacting massive particles). Truly non-interacting particles (NIP) are presumed to be immeasurable.

So there you have it. The conundrum that consciousness can lack experience and unconsciousness can have experience. A more interesting question in my opinion: what is a soul?

glenstein

5 months ago

>Anything that is able to be measured is able to experience.

I was quite liking this explanation but you lost me here. I very strongly agree with your opening, and I think it's the key to everything. I think everyone insisting on a categorical divide runs into impossible problems.

And a good explanation of consciousness has to take the hard problem seriously, but doesn't have to agree that subjective and objective, or first person in third person or whatever you want to call them, are irreducibly distinct categories. But I think it makes more sense to say that some subset of all of the objective stuff out there is simultaneously subjective, rather than saying that all stuff at all times is both objective and subjective. I don't think an apple experiences gravity the way a mind experiences a conscious state, but I do think the through line of understanding them both as importantly physical in the same sense is key to tying physical reality to explanation of conscious states.

the_af

5 months ago

> Sensory deprived, paralyzed, or comatose individuals can be conscious but have no means to experience the outside world, and depending on their level of brain activity, they might not even have an "inner world" or mind's eye experience.

If they don't have an "inner world"/"mind's eye" and are sensory deprived, in which sense can they be considered conscious? What is your definition here?

How can an apple "experience" gravity? I think you're overloading the term "experience" to mean two very different things, which happen (in some languages like English) to share the same word. You could say gravity "happens" to an apple, and then there's no confusion with subjective experiences.

curiousguy7374

5 months ago

But I still don’t know what it’s like to be a bat

Also, if there is a soul, then how can we be confident concisouness arises from physical means? If there is a soul, it is the perfect means to differentiate concisouness and p-zombies.

samirillian

5 months ago

Ive wondered if to a bat a bat is more like a whale, swimming through the air, calling out at a rate and pitch sort of matching the distance its electrical signals travel. To them they aren’t moving fast at all, or maybe to them maybe humans are like ents, plodding along so slow talking like ents.

anon-3988

5 months ago

If you are a secular person, it should follow that you are a non-dualist. Yet that is not so common. There's no "whats its like to be a bat". Because that invokes a sense of a "soul" or "spirit" or "self" being transferred from one being to another.

There is only is and its content. That's it. The easiest way to see or get a sense of this is to replace any "I am ..." with "There is a ....". For example, instead of "I am thinking of writing of using stable sort", replace it with "This person have a thought of using stable sort".

This is much closer to the actual reality underneath. Even attachment itself can be put in this term. "There's a feeling that this person own this" or "There's a sense of I".

After doing, perhaps this is mental illness, I already see glimpse of the sense that everything is everything at the same time. As there are no real difference between this rock and the other rock behind the mountain that I can't see. There should be no difference between my thoughts, senses, feelings, emotions etc and that of other people. Now your sense of self captures the entirety of the universe. If you die, the universe dies for all you know. I think this is what the ancient books have been talking about by rising and being a God.

astrange

5 months ago

This is a spiritual error called monism. It's taking non-dualism too far.

> As there are no real difference between this rock and the other rock behind the mountain that I can't see.

There is a real difference between the two; there must be because they're in different places. Monism requires you to deny actually existing differences by saying they're not "real".

> There should be no difference between my thoughts, senses, feelings, emotions etc and that of other people.

This is what in therapyspeak you'd call "not having boundaries". You aren't the same thing as other people; you can tell because the other people don't think that, won't let you borrow their car, etc. It opens them or yourself up to abuse if you think this way.

fsckboy

5 months ago

>There's no "whats its like to be a bat". Because that invokes a sense of a "soul" or "spirit" or "self" being transferred from one being to another.

what's it like to be a human?

"There's no "whats its like to be a human". Because that invokes a sense of a "soul" or "spirit" or "self" being transferred from one being to another." -- anon-3988

it does?

selcuka

5 months ago

> If you are a secular person, it should follow that you are a non-dualist.

It depends on your definition of "dualism". If you define it as "having a soul that was created by a higher being", then yes, they are mutually exclusive.

On the other hand, one can also define dualism as being purely evolutionary. David Chalmers [1], an Australian philosopher and cognitive scientist, has some interesting ideas around how dualistic consciousness may relate to quantum mechanics.

[1] https://en.wikipedia.org/wiki/David_Chalmers

user

5 months ago

[deleted]

derektank

5 months ago

Secular != Strict Materialist

There are far fewer of the latter than the former

tooheavy

5 months ago

Materialism (perhaps physicalism as well) appears to be on shaky ground to me - it does not tell me 'why' I have the first person experience that I have, why I experience and embody the matter that is my person or being, a specific entity. Another way to look at it is to say there doesn't appear to be a region in the brain that defines why I experience the brain, that or this specific brain. From this perspective, I find it self-refuting. They appear only to locate or correlate matter and experience - to help explain 'how'. If I could experience other persons or beings in the first person, and the matter in each person explained why it is that I experience that specific person or entity, I might believe otherwise. To me, this simple fact makes it obvious there is something 'more' that must explain how 'being' relates to consciousness, otherwise, we are simply explaining how the brain modulates experience - very valuable, but less interesting and within reach and validated in everyday life (biochemically and physically, degeneration, damage, etc.). So I would say the brain appears to modulate what is responsible for first person experience. This may not be the correct way to look at consciousness, but it's the most intuitively appealing to me. Because we can't separate being from consciousness, I find the idea that we might create it in the near-term unbelievable. We might certainly create something that can operate with the same or similar results, but I'm not currently convinced it would actually have a subjective first person experience equivalent to the reason we experience the matter we experience. There may be a logical or philosophical way around this view, but as I'm not trained, it's not immediately obvious.

Ukv

5 months ago

IMO a lot of this comes from still holding onto the dualist idea of "I" as a separate non-physical entity, and then expecting some region of the brain to act as a link or communication channel to it.

> If I could experience other persons or beings in the first person, and the matter in each person explained why it is that I experience that specific person or entity, I might believe otherwise.

Materialism doesn't say that there's some "I" that could experience different persons. I think the best you could do, in theory, is transplant aspects like your personality/train of thought/memories into someone else's brain (by physically altering it to have those aspects).

dghf

5 months ago

Contrarily, the problem I have with non-materialist/physicalist explanations is that they don't really seem to explain anything.

If we assume dualism, that there is some non-material stuff -- call it soul or spirit or mind or psyche or whatever -- that gives rise to consciousness, I think it's fair to ask how it does that.

And if the answer is "we don't know" or "it just does", I really can't see what we've gained over materialism.

tooheavy

5 months ago

I'm open to there being something in reality that explains being someone or a specific person. Having a specific location in reality raises the question of how it came to be and what are the possibilities or limits - it's a piece of unexplained information that suggests more information and explanation is needed. Saying it is meaningless or assumed actually appears to not explain anything. But I would have to think about it more.

txrx0000

5 months ago

Materialism is indeed on shaky ground, but the ground shakes everywhere else, too.

The problem of consciousness has no real solution. A quick way to demonstrate this is via the simulation hypothesis. Consider the following for yourself in first person:

It's impossible to know for certain whether I am in a simulation until I wake up outside of it. Not having observed any evidence of being inside a simulation (probability=0) doesn't necessarily mean I'm certainly in base reality. It could be that the evidence just hasn't been observed yet. And even then, it's impossible to know whether that outer world is a simulation until I wake up in the outer-outer-world, and so on.

That is to say, if my definition of real equals my consciousness equals my existence, I'm really saying that consciousness/reality/existence is a self-defining thing.

Descartes' cogito had unexamined metaphysical convictions. "I think, therefore I am" is not compatible with consciousness because rationality has consciousness as a dependency. If I think back on my entire conscious experience as a timeline, I was conscious before I was rational. I had to derive rationality from experience, not the other way around.

Now I throw away those convictions. "I think" means the same thing as "I am", and "therefore" is a decorative force of habit rather than a reference to logic. In which case, "I think, therefore I am" is the same as: I observe that I observe.

Is the same as: I observe.

Is the same as: I am.

There is no certainty beyond this, only convictions. Even if I'm truly a human brain in a matter-based world, the world would still appear uncertain to this brain in this way.

"A scientist rejecting consciousness is not that different from a nun accepting god in this regard. Neither of them are fully honest with themselves and the world."

That's what I find myself thinking as I take a materialist stance and assume that this is base reality and other people are real in the same way that I am. This appears to fit all of my observations the best, so far, after all.

// end of monologue

And here's my pitch, from me to you:

Let's be provisional materialists together. You can't know if it's the ultimate truth but you can make the correct predictions more often and not be alone while doing it.

GoblinSlayer

5 months ago

In this world "why" and "how" are synonyms. Asking why experience happens is equivalent to asking how experience happens.

tooheavy

5 months ago

It's unfortunate there are pseudo-intellectual trolls on hacker news.

bee_rider

5 months ago

Can a bat answer the question of “what is it like to be a bat?” I mean, I guess they would have to be able to comprehend the idea of being, and then the idea that things might experience things in ways other than how they do. Bats don’t seem like very abstract thinkers.

I bet if we could communicate with crows, we might be able to make some progress. They seem cleverer.

Although, I’m not sure I could answer the question for “a human.”

snowram

5 months ago

Wittgenstein famously said "If a lion could talk, we could not understand him". This subject is a philosophical fun rabbit hole to explore.

Dumblydorr

5 months ago

The very capability and flexibility of language drove evolution of the mind beyond what species with less linguistic behaviors could handle. After all, facility with language is a massive survival benefit, in our species more than any other. It’s circular because feedback loops in evolution are circular too.

AIorNot

5 months ago

That’s called meta cognition (what humans do) not subjective experience - which is the feeling of what happens and sets animal or agentic creatures apart from rocks (not sure about plants)

card_zero

5 months ago

Dennett has a character telling a story about a bat:

Here's Billy the bat perceiving, in his special sonar sort of way, that the flying thing swooping down toward him was not his cousin Bob, but a eagle, with pinfeathers spread and talons poised for the kill!

He then points out that this story is amenable to criticism. We know that the sonar has limited range, so Billy is not at least perceiving this eagle until the last minute; we could set up experiments to find out whether bats track their kin or not; the sonar has a resolution and if we find out the resolution we know whether Billy might be perceiving the pinfeathers. He also mentions that bats have a filter, a muscle, that excludes their own squeaks when they pick up sonar echoes, so we know they aren't hearing their own squeaks directly. So, we can establish lots about what it could be like to be a bat, if it's like anything. Or at least what is isn't like.

antonvs

5 months ago

What is that criticism supposed to be criticizing?

Nagel's paper covers a lot of ground, but none of what you described has any bearing on the point about it "what it's like" as a way to identify conscious experience as distinct from, say, the life of a rock. (Assuming one isn't a panpsychist who believe that rocks possess consciousness.)

meroes

5 months ago

That's the magic answer. It's a/the hard problem, but permeable to inquiry. The top neuroscience research into consciousness however doesn't seem like this kind of inquiry Dennett is referencing.

scubakid

5 months ago

To me, "what is it like to be a" is more or less the intersection of sensory modalities between two systems... but I'm not sure the extent of the overlap tells you much about whether a given system is "conscious" or not.

kelseyfrog

5 months ago

Pretty much the same conclusion here. Consciousness is what we feel when sheaf 1-cohomology among our different senses vanishes.

Bringing it back to bats, a failure to imagine what it's like to be a bat is just indicative that the overlaps between human and bat modalities don’t admit a coherent gluing that humans can inhabit phenomenally.

rout39574

5 months ago

Do you really mean that it's very nearly the same thing "To be a" you, and an Elon Musk, a homo sapiens infant, and an Orangutan? And only modestly different from these to be a dog or a horse?

If I've understood you correctly, I'll suggest that simple sensory intersection is way way not enough: the processing hardware and software are material to what it is like to be someone.

tim333

5 months ago

Maybe in the future we'll be able to run computer simulations of people and bats that think they are conscious and you'll be able to merge them a bit to get some bat experience?

AIorNot

5 months ago

You would be adding bat experience (sonar, hanging upside down, flying etc) to become a literal Bat Man so to speak :)

But you would never know exactly what it feels to be a bat without removing your human level experience from the picture

dwd

5 months ago

Anil Seth recently wrote a book "Being You", which very much states that we can only know what it is like to be ourselves.

Basically, to know what it is like to be a bat, you need to have evolved as a bat.

His theory that our perception is a hallucination generated by a prediction algorithm that uses sensory input to update and correct the hallucination is very interesting.

daoboy

5 months ago

Ed Yong wrote an excellent book closely related to this topic titled An Immense World on the sensory lives of animals that we are still only beginning to understand.

"It is all that we know, and so we easily mistake it for all there is to know. As a result, we tend "to frame animals' lives in terms of our senses rather than theirs."

IAmGraydon

5 months ago

>An organism has conscious mental states if and only if there is something that it is like to be that organism—something it is like for the organism.

Isn’t this just the same as saying an organism is conscious if it perceives? If it is aware of input from one or more senses (and I’m not limiting that to the five human senses)?

iLemming

5 months ago

The article basically talkes about "umwelt" (there is a link at the bottom) - "is the specific way in which organisms of a particular species perceive and experience the world, shaped by the capabilities of their sensory organs and perceptual systems"

How it at all related to let's say programming?

Well, for example learning vim-navigation or Lisp or a language with an advanced type system (e.g. Haskell) can be umwelt-transformative.

Vim changes how you perceive text as a structured, navigable space. Lisp reveals code-as-data and makes you see programs as transformable structures. Haskell's type system creates new categories of thought about correctness, composition, and effects.

These aren't just new skills - they're new sensory-cognitive modalities. You literally cannot "unsee" monadic patterns or homoiconicity once internalized. They become part of your computational umwelt, shaping what problems you notice, what solutions seem natural, and even how you conceptualize everyday processes outside programming.

It's similar to how learning music theory changes how you hear songs, or how learning a tonal language might affect how you perceive pitch. The tools become part of your extended cognition, restructuring your problem-space perception.

When a Lisper says "code is data" they're not just stating a fact - they're describing a lived perceptual reality where parentheses dissolve into tree structures and programs become sculptable material. When a Haskeller mentions "following the types" they're describing an actual sensory-like experience of being guided through problem space by type constraints.

This creates a profound pedagogical challenge: you can explain the mechanics of monads endlessly, but until someone has that "aha" moment where they start thinking monadically, they don't really get it. It's like trying to explain color to someone who's never seen, or echolocation to someone without that sense. That's why who's never given a truthful and heartfelt attempt to understand Lisp, often never gets it.

The umwelt shift is precisely what makes these tools powerful - they're not just different syntax but different ways of being-in-computational-world. And like the bat's echolocation, once you're inside that experiential framework, it seems impossible that others can't "hear" the elegant shape of a well-typed program.

There are other umwelt-transforming examples, like: debugging with time-travel/reversible debuggers, using pure concatenative languages, logic programming - Datalog/Prolog, array programming, constraint solvers - SAT/SMT, etc.

The point I'm trying to make - don't try to "understand" the cons and pros of being a bat, try to "be a bat", that would allow you to see the world differently.

iLemming

5 months ago

I suppose someone (even an experienced vimmer) might argue that learning vim is not so much "umwelt-transformative", but rather like "muscle memory training", like LeetCode drilling.

Indeed, basic vim-navigation - (hjkl, w, b) is muscle memory.

But, I'd argue the umwelt shift comes from vim's modal nature and its language of text objects. You start perceiving text as having an inherent grammar - "inside parentheses", "around word", "until comma." Text gains topology and structure that was invisible before.

The transformative part isn't the keystrokes but learning to think "delete inside quotes" (di") or "change around paragraph" (cap). You see text as composable objects with boundaries, not just streams of characters. This may even persists when you're reading on paper.

That mental model often transforms your keyboard workflow not just in your editor - but your WM, terminal, web browser, etc.

user

5 months ago

[deleted]

epiphenomenal

5 months ago

I think I wrote a whole book around this. :)) Feel free to reach out at theillusionengine@gmail.com for a draft :) https://illusionengine.xyz/ :)

visarga

5 months ago

Interesting topic, but I can only see one chapter. Based on chapter names it seems you lean closer to cybernetics or process philosophy. Is that true? I find ignoring time and process to be the greatest sin in the field of consciousness. The big issue is not that we don't know the quantum trick or property-dualism that explains consciousness, but that we try to remove time and process from it. That is impossible, a static explanation will never capture dynamic execution of a system.

I worked on similar topics, I publish on a "personal" subreddit.

https://www.reddit.com/r/VisargaPersonal/

ulrischa

5 months ago

He anticipated an AI problem decades early. Replace “bat” with “LLM” or “alien intelligence,” and the paper reads like a warning: describing behavior and mechanisms might never reveal the inner feel, if there is one, to outsiders.

user

5 months ago

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nomilk

5 months ago

> Nagel asserts that "an organism has conscious mental states if and only if there is something that it is like to be that organism—something it is like for the organism."

Struggling to make sense of this sentence.

AlexResi

5 months ago

An organism is conscious exactly when there is something it is like for that organism to be itself.

Or in a simpler way, consciousness is present just in case being that organism has an inner, subjective character - something that can not be reduced to a purely material state.

PreHistoricPunk

5 months ago

It means that if something has conscious mental states then it must have subjective experience from its own perspective. If John has a conscious mental state, then I must be able to ask "What is it like to be John?". Hope that helps.

padjo

5 months ago

I wouldn’t bother.

safety-space

5 months ago

Science studies the physical and measurable. Consciousness isn’t physical or measurable. That’s why the “hard problem” sits outside what science, by definition, can explain.

glenstein

5 months ago

>Consciousness isn’t physical or measurable.

That's just a question begging assertion, and there's plenty of empirical knowledge of necessary physical conditions for consciousness as well as predictable physical influences on conscious states. Whether consciousness is "measurable" is part of what's at issue and can't just be definitionally presupposed.

KolibriFly

5 months ago

The fact that we can't bridge subjective and objective descriptions without hand-waving probably says more about the limits of human concepts than about bats

MollyRealized

5 months ago

Answer: You are a creature of the night, terrible, able to strike terror into a superstitious, cowardly lot.

mjcohen

5 months ago

As Disney almost wrote:

Everybody wants to be a bat Cause noone but a bat really knows where it's at

socrateswasone

5 months ago

It's not like anything, a bat has no sense of self or personal history, it operates on instinct without a personal, reflective self. A bat having consciousness is as relevant as whether a sonar does.

accrual

5 months ago

> it operates on instinct without a personal, reflective self

I think we would call this "without ego" and not "without consciousness". I think it's totally possible to be conscious without ego. And perhaps bats do have an ego however small - some may be more greedy than others, etc.

AIorNot

5 months ago

Do you mean the bat has no subjective experience? If so - That’s a pretty extraordinary claim to make there and one that risks great ethical concern on the treatment or animals

If bats have no subjective experience it’s ethical to do anything to them but if there is than they deserve to (as all animals) be treated ethically as much as we can do so

IMO considering Bats to be similar to Mice -we’ve studied mice and rats extensively and while cannot know precisely we can be pretty sure there is subjective experience (felt experience there) ie almost our scientific experiments and field data with so called ‘lower’ organisms show evidence of pain, suffering and desires, play etc - all critical evidence of subjectivity

Now I don’t think bats are meta-conscious (meta cognitive) because they can’t commiserate on their experiences or worry about death etc like humans can but they feel stuff - and we must respect that

hsod

5 months ago

Douglas Hofstadter wrote an essay about this essay in the book “The Mind’s I” which I thoroughly enjoyed reading even if a lot of it is beyond me. There’s a somewhat janky OCR version here http://themindi.blogspot.com/2007/02/chapter-24-what-is-it-l...

Classic Hofstadter, he introduces a concept called a “Be-Able Thing” (BAT for short)

wagwang

5 months ago

Can we just all admit there has basically been no real progress made to the mind-body problem. They all rest on metaphysical axioms of which no one has any proof of. Physicalism is about as plausible as solipsism.

Exhibit a

> Nagel begins by assuming that "conscious experience is a widespread phenomenon" present in many animals (particularly mammals), even though it is "difficult to say [...] what provides evidence of it".

jibal

5 months ago

> Physicalism is about as plausible as solipsism.

Physicalism is an ontological assertion that is almost certainly true, and is adhered to by nearly all scientists and most philosophers of mind. Solipsism is an ontological assertion that could only possibly be true for one person, and is generally dismissed. They are at opposite ends of the plausibility scale.

vehemenz

5 months ago

> Physicalism is about as plausible as solipsism

And while you're at it, as plausible as any metaphysical theory, insofar as you're still doing metaphysics.

glenstein

5 months ago

>Can we just all admit there has basically been no real progress made to the mind-body problem.

I think we've made extraordinary progress on things like brain to machine interfaces, and demonstrating that something much like human thought can be approximated according to computational principles.

I do think some sort of theoretical bedrock is necessary to explain to "something there's like to be" quality, but I think it would be obtuse to brush aside the rather extraordinary infiltrations into the black box of consciousness that we've made thus far, even if it's all been knowing more about it from the outside. There's a real problem that remains unpenetrated but as has been noted elsewhere in this thread, it is a nebulous concept, and perhaps one of the most difficult and important research questions, and I think nothing other than ordinary humility is necessary to explain the limit an extent to which we understand it thus far.

geye1234

5 months ago

Much of the mind-body problem comes from Descartes, who assumed that physical reality was nothing more than a bunch of particles bouncing around. Given that the mind cannot be reduced to this (whatever my experiences are, they are different from particles bouncing around), then the mind must be something utterly unlike everything else in reality. Thus Descartes posits that the mind is one thing and the body another (substance dualism).

If one drops the assumption that physical reality is nothing more than a bunch of particles, the mind stops being so utterly weird and unique, and the mind-body problem is more tractable. Pre-17th century, philosophers weren't so troubled by it.

bettating

5 months ago

What is it like to be another person?

esafak

5 months ago

I'm not sure how to answer the even more fundamental question, "What is it like to be yourself?" What constitutes a valid answer? It's a vague question.

card_zero

5 months ago

It's more or less OK, thank you for asking. Recently I felt:

Disappointed when I went somewhere and there wasn't any tea,

Enthralled by a story about someone guarding a mystical treasure alone in a remote museum on a dark and stormy night,

Sympathetic toward a hardworking guy nobody likes, but also aggravated by his bossiness to the point of swearing at him,

Confused due to waking up at 7 pm and not being sure how it happened.

You probably don't entirely understand any of those. What is it to entirely understand something? But you probably get the idea in each case.

tgbugs

5 months ago

I'm going to ignore the issues of mind/body dualism since they are orthogonal to the argument I want to make about Nagel's bat.

The short version is that if we can approximate the sensory experience and the motor experience of an organism, and we can successively refine that approximation as measured by similarity in behavior between bat and man-bad, then I would argue that we can in fact imagine what it is like to be a bat.

In short, it is a Chinese Bat Room argument. If you put a human controlling a robot bat and a bat in two boxes and then ask someone to determine which is the human and which is the bat, when science can no longer tell the difference (because we have refined the human/bat interface sufficiently) you can ask the human controlling the robot bat to write down their experience and it would be strikingly similar to what the bat would say if we could teach it English.

The bat case is actually easier than one might suppose, similarly say, a jumping spider, because we can translate their sensory inputs to our nervous system and if we tune our reward system and motor system so that we can get even an approximate set of inputs and similar set of actuators, then we can experience what it is like to be a bat.

Further, if I improve the fidelity of the experimental man-bat simulation rig, the experience will likewise converge. While we will not be able to truly be a bat since that is asymptotically mutually exclusive with our biology, the fact that we can build systems that allow progressive approach to bat sensory motor experience means that we actually do have the ability to image the experience of other beings. That is, our experiences are converging and differ only due to our lack of our technical ability to overcome the limitations of our biological differences.

The harder case is when we literally don't have the molecule that is used to detect something, as in the tetrachormat case. That said one of my friends has always wanted to find a way to do an experiment where a trichromat can somehow have the new photo receptor expressed in one eye and see what happens.

The general argument about why we would expect something similar to happen should the technical hurdles be overcome is because basically all nervous systems wire themselves up by learning. Therefore, as long as the input and output ranges can be mapped to something that a human can learn, then a human nervous system should likewise converge to be able to sense and produce those inputs and outputs (modulo certain critical periods in neural development, though even those can be overcome, e.g. language acquisition by slowing down speech for adults).

Some technical hurdle examples. Converting a trichromat into a tetrachormat by crispering someone's left eye. Learning dolphin by slowing down dolphin speech in time while also providing a way for humans to produce dolphin high frequency speech via some transform on the human orofacial vocal system. There are limitations when we can't literally dilate time, but I supposed if we are going all the way, we can accelerate the human to the fraction of the speed of light that will compensate for the fact that the human motor system can't quite operate fast enough to allow a rapid fire conversation with a dolphin.

Der_Einzige

5 months ago

Daniel Dennett was the only good part of the "New Atheism" movement. May he rest in peace.

vehemenz

5 months ago

The moniker was mostly invented by the press. But if we're talking about all four "horsemen," I think they all made positive contributions to their respective fields. Likewise, there are fair critiques one can level at each of them, including Dennett.

user

5 months ago

[deleted]

user

5 months ago

[deleted]

lenerdenator

5 months ago

[flagged]

dang

5 months ago

Could you please stop posting unsubstantive comments? We're trying for something else here.