[HN Gopher] Living human brain cells play DOOM on a CL1 [video]
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       Living human brain cells play DOOM on a CL1 [video]
        
       Author : kevinak
       Score  : 120 points
       Date   : 2026-03-08 15:07 UTC (7 hours ago)
        
 (HTM) web link (www.youtube.com)
 (TXT) w3m dump (www.youtube.com)
        
       | booleandilemma wrote:
       | Future robots will be powered by human brain cells. Companies
       | will use them as conscious slaves and they'll get around slavery
       | laws by saying they're not human.
        
         | Mistletoe wrote:
         | I'm reminded of the brain in a jar robots from Fallout.
        
         | DoktorDelta wrote:
         | The androids will dream of electric sheep.
        
       | dustfinger wrote:
       | > We've combined lab-grown neurons with silicon chips and made it
       | available to anyone, for first time ever.
       | 
       | There is a line somewhere here that I personally feel we should
       | not cross.
        
         | virgildotcodes wrote:
         | 100%
         | 
         | We know that neurons can produce subjective experience.
         | 
         | This is the first time in my life that I've felt a scientific
         | avenue of research should shut down.
        
           | vixen99 wrote:
           | At the very very least there are more productive ways of
           | spending time.
        
           | blizdiddy wrote:
           | Animal testing, weapons testing, medical trials, cloning,
           | psychological experiments... had you just never considered
           | them before? Why this?
        
             | thierrydamiba wrote:
             | Same reason people get scared to fly but drive everyday.
             | Humans are simultaneously wildly irrational and terrible at
             | calculating risk.
        
             | api wrote:
             | Not sure why this is being downvoted. It's a valid point.
             | This neuron chip stuff is far less problematic than a lot
             | of animal testing where you clearly have a whole organism
             | that experiences something.
             | 
             | Factory farming too. The way we treat chickens in
             | particular is out of a horror movie, and that's in
             | countries with some standards. Globally I'm sure many
             | billions of animals are constantly submitted to the most
             | grotesque torture for food.
        
             | ryeights wrote:
             | Those things all exist within our conscious realm. "Human
             | brain cells in a vat used for computation" suggests horrors
             | beyond understanding
        
             | NegativeLatency wrote:
             | This is somewhat novel unlike say weapons manufacturing.
             | Also assuming that the GP is in the tech community to some
             | degree, it makes sense they'd have a stronger reaction.
             | 
             | There's lots of bad stuff humans shouldn't be doing.
        
           | namero999 wrote:
           | We don't really know that.
        
           | bogwog wrote:
           | Sounds like you're applying scifi tropes to real life. Don't
           | do that. That's why some people are developing "AI psychosis"
           | today after playing with LLMs.
        
             | everforward wrote:
             | The fear is that we don't really understand what causes
             | consciousness. I think that's a valid fear, because we
             | can't know ahead of time whether we will inadvertently
             | create a "person" inside the machine.
             | 
             | Unless your proposition is that no collection of human
             | neurons outside of live birth can become sentient, and I'm
             | not sure how you'd arrive at that conclusion without
             | invoking some kind of spiritual argument.
        
             | newsy-combi wrote:
             | You're equivocating two totally separate things
        
         | ZunarJ5 wrote:
         | To be a fly on the wall in that ethics committee meeting...
        
         | exe34 wrote:
         | I have no mouth and I must scream.
        
           | wigster wrote:
           | it is a terrifying thought.
        
           | DetroitThrow wrote:
           | We grew a brain on a petri dish, gave it a shotgun, and sent
           | it to hell.
           | 
           | Next up, we teach it to speed run Getting Over It. What a
           | horrible existence.
        
         | doug_durham wrote:
         | I'm confused by this statement. A neuron is a machine. A
         | silicon chip computer is a machine. All they have done is
         | interfaced two machines.
        
           | birdsongs wrote:
           | This is naive or in bad faith.
           | 
           | Sure, a neuron is a machine.
           | 
           | 200,000 neurons connected in a matrix is a brain, albeit a
           | very primitive one. Ants have 250,000 neurons in their
           | brains.
        
             | doug_durham wrote:
             | How is it naive? You admit that an individual neuron is a
             | machine. 200k neurons in a petri dish isn't a brain. I'm
             | not the naive one here.
        
       | kingkawn wrote:
       | Wasn't this the original conceptualization for the Matrix?
        
         | 00N8 wrote:
         | Speaking of earlier concepts of The Matrix, there's an old 1973
         | German movie/mini series _World on a Wire_ that 's really good.
        
         | drzaiusx11 wrote:
         | Wasn't the matrix using humans as some sort of power
         | source/batteries? I may be misremembering though, as that seems
         | pretty silly in retrospect ..
        
       | neom wrote:
       | It seems a bit more complicated than first blush:
       | https://www.rdworldonline.com/the-neurons-playing-doom-are-a...
       | 
       | Personally, dislike this direction a lot. I don't like that
       | they're using a killing game (I understand the trope, doesn't
       | make me like it any less) and the general idea of this whole
       | thing makes me quite uneasy.
        
         | sunir wrote:
         | Do you feel like you have no mouth and you must scream?
        
         | oersted wrote:
         | > The neurons serve as a biological filter: the training system
         | translates screen pixels and ray-cast distances into electrical
         | zaps, the living cells fire spikes, and those counts feed
         | straight into a PyTorch decoder that maps them to Doom actions.
         | The PPO agent, CNN encoder and entire reward loop run on
         | ordinary silicon elsewhere. Cole's ablation modes make the
         | split testable, set decoder output to random or zero and the
         | game still plays. The CL1 hardware interface works exactly as
         | advertised. What remains unproven is whether 200,000 human
         | neurons can ever carry the policy instead of just riding along.
         | 
         | Yeah... That's quite the smoking gun.
         | 
         | So it's quite likely then that the neurons are just acting as a
         | bad conductor. The electrodes read a noisy version of the
         | signals that go into the neurons, and they just train a CNN
         | with PPO to remove that noise, get the proper inputs, and learn
         | a half-decent policy for playing the game.
         | 
         | If this worked as advertised they shouldn't need a CNN decoder
         | at all! The raw neuron readout should be interpreted as game
         | inputs directly.
         | 
         | Besides, they are not streaming the video into the neurons at
         | all. Just the horizontal position of the enemies and the
         | distance, or some variant of that. In that sense it's barely
         | more than pong isn't it? If enemy left, rotate left, if enemy
         | right, rotate right, if enemy center shoot. At a stretch, if
         | enemy far, go forward, if enemy close, go back. The rest of the
         | time just move randomly. Indeed, the behavior in the video is
         | essentially that...
         | 
         | While we are at it, the encoded input signal itself is already
         | pretty close to a decent policy if mapped directly to the keys
         | (how much enemy left, center, right), even without any CNN, PPO
         | or neurons.
        
       | fsmv wrote:
       | I'm having trouble understanding to what extent the machine
       | learning used for interfacing with the neurons is doing the
       | learning
        
       | sillysaurusx wrote:
       | Be sure to dig into the details before taking this at face value.
       | There once was a story "Rat brain flies plane" a couple decades
       | ago, and it turned out to be bogus. But to find that out, you had
       | to read the paper and reverse engineer that nothing substantial
       | was actually going on. It's tempting to be charitable, but you
       | can't really know whether headlines like this are legit till you
       | understand exactly what they did.
       | 
       | (The rat brain guys repeated the experiment until the plane
       | stopped crashing, but no "learning" was happening; it was
       | expected that when the neuron's range reached so-and-so, that the
       | plane would fly level. So they started with a neuron outside that
       | range, showed that it crashed, then adjusted the neuron until it
       | flew level. But that's not what "rat brain flies plane" implies.)
        
         | birdsongs wrote:
         | I looked into it. They're not feeding the framebuffer to the
         | neurons, but have a "signal" when an enemy is on screen to some
         | of the tissue's inputs, and how to locate it in the x/y axis,
         | and have outputs for the character to turn right or left or
         | fire.
         | 
         | It's "see this input signal, send these output signals", which
         | seems consistent with the title.
         | 
         | It seems they grow the neural tissue on a chip the neurons can
         | interface with and send out / receive electrical impulses. They
         | let the neurons self assemble, and "train" via reward or
         | punishment signals (unclear to me what those are).
         | 
         | Either way this makes me nauseous in a way I haven't
         | experienced much with tech. The telling thing for me is, all
         | these people are so excited to explain, but not once, ever, in
         | the video speak of ethics or try to mitigate concerns.
         | 
         | We know this is only 200,000 neurons. Dogs have 500 million.
         | Humans have billions. But where is the line for sentience,
         | awareness? Have we defined it? Can we, if we don't understand
         | it ourselves? What are the plans to scale up?
         | 
         | It's legitimately horrifying to me.
        
           | birdsongs wrote:
           | Replying to myself: how long before one of these with the
           | neuron count of a corvid and trained on pattern recognition
           | gets plugged into a drone?
           | 
           | This is a very dark path, and I could not trust the people in
           | charge less.
        
             | DrewADesign wrote:
             | I'm kind of sick of how readily the non-managerial tech
             | world accepts "what happens is someone else does this
             | immoral thing _before us_?!" rhetoric as a real answer to
             | questioning whether or not we should contribute our talent
             | and ideas to something that we, deep down, know is bad for
             | fellow humans.
        
               | Chris2048 wrote:
               | > rhetoric as a real answer
               | 
               | Why is it rhetoric? This goes beyond whatever malignant
               | thing was perceived in this study, but why is it a
               | rhetorical non-answer?
               | 
               | > we, deep down, know is bad
               | 
               | this feels like _real_ rhetoric.
        
               | DrewADesign wrote:
               | > _Why is it rhetoric? This goes beyond whatever
               | malignant thing was perceived in this study, but why is
               | it a rhetorical non-answer?_
               | 
               | You seem hung-up on my using the word rhetoric. Just so
               | we're on the same page here:
               | 
               | > rhetoric, n : _the art of speaking or writing
               | effectively: b)the study of writing or speaking as a
               | means of communication or persuasion_
               | 
               | The business writing class I took in college was called
               | _Business Rhetoric._ It's not a bad word.
               | 
               | If you're crafting arguments to get other people to
               | support specific actions or products or policies or
               | whatever, that is unambiguously _rhetoric._
               | 
               | > _this feels like real rhetoric._
               | 
               | Sure? Rhetoric that implores people to value their
               | principles over theoretical security concerns or FOMO or
               | greed? I wouldn't exactly call that rakish.
               | 
               | It's a non-answer because if you really feel doing
               | something is _bad,_ consider yourself a consequential
               | actor in the world whose contributions meaningfully
               | advance the projects you work on, then why would you want
               | to help someone be there first to do a bad thing? If you
               | don't feel it's bad, then there's no problem. You're just
               | living your life. That is clearly not the position
               | expressed by the content I responded to. If there are
               | actual concrete concerns that don't essentially boil down
               | to "well they're going to make that money before I do,"
               | then that would be an actual answer.
        
               | Chris2048 wrote:
               | > It's not a bad word.
               | 
               | When used in the negative sense it is, per https://dictio
               | nary.cambridge.org/dictionary/english/rhetoric
               | 
               | "disapproving -> clever language that sounds good but is
               | not sincere or has no real meaning"
               | 
               | Are you implying you mean something other than this sense
               | of the word?
        
             | Chris2048 wrote:
             | Why is that the concern of the authors of _this_ paper?
        
               | LtWorf wrote:
               | Why wouldn't it be? They worked on it.
        
             | perching_aix wrote:
             | In a sense humanity has already done that, just with a lot
             | more of the given animal intact and less hi-tech:
             | https://en.wikipedia.org/wiki/Project_Pigeon
             | 
             | Not an endorsement or a condemnation, just something I
             | learned of recently and found surprising.
        
           | delichon wrote:
           | > It's legitimately horrifying to me.
           | 
           | Would you feel any differently if a product from this tech
           | used the user's own neurons grown from their stem cells?
        
             | birdsongs wrote:
             | No. We don't understand our own sentience. I don't know how
             | we can be so confident as to not think it can evolve here
             | using literal human neurons that can learn to take input
             | signals and send output signals.
             | 
             | I don't think this 200,000 neuron array is sentient. But I
             | also don't think we can define the line where that may
             | happen. I assume this company will scale. How far, and to
             | what extent?
        
           | jstummbillig wrote:
           | > all these people are so excited to explain, but not once,
           | ever
           | 
           | What do you mean? What is this class of people in your mind?
           | There are tons of people who consider and talk about the
           | ethics behind what they are doing, long before most people
           | would think it remotely relevant (leading AI labs being an
           | example, and I know the same to be true of various
           | geneticists startups).
           | 
           | I do agree that the entire presentation in this case is
           | bewildering.
        
             | birdsongs wrote:
             | > What do you mean? What is this class of people in your
             | mind?
             | 
             | I'm specifically talking about this presentation in this
             | article (the video and release details of CL1 doom). Did
             | you read it / watch it?
        
               | jstummbillig wrote:
               | Ah. Yeah, watched it - and agree there.
        
             | wonnage wrote:
             | The AI labs do it as thinly disguised marketing. Anyone
             | trying to stand up for ethics in the way of revenue is
             | quickly pushed aside
        
               | jstummbillig wrote:
               | The capability of people to so easily ascribe broad ill
               | intent to others does not cease to amaze me.
        
           | Chris2048 wrote:
           | > not once, ever, in the video speak of ethics
           | 
           | On the contrary, I dislike premature ethics discussion, where
           | you end up wildly speculating what the tech _might_ become
           | and riffing off that, greatly padding whatever relative
           | technical content you had. I don 't want every technical
           | paper to turn into that, ethics should be treated as a
           | higher-level overview of concerns in a field, with a study
           | dedicated to the ethical concerns of that field (by domain-
           | specific ethics specialists).
           | 
           | Is your concern weapon automaton, or animal rights?
        
             | birdsongs wrote:
             | My concern is creating literal sentience in a box. I don't,
             | personally, think it's unfounded for me to have that
             | concern, given that we're growing masses of human neurons
             | and teaching them to perform tasks.
             | 
             | I'm not going to start campaigning against it or changing
             | my life. But it still makes me deeply uncomfortable, and
             | that's allowed.
        
               | Chris2048 wrote:
               | > and that's allowed
               | 
               | In what sense, and as opposed to what? What aren't you
               | allowed to feel irrationally uncomfortable, or baselessly
               | concerned with?
        
           | jmusall wrote:
           | It is horrifying. OTOH, we force-breed, torture and kill
           | animals and their children in the millions every day just for
           | the pleasure of consuming meat, eggs and dairy products. I'm
           | not saying this makes it okay to create a conscious brain in
           | a dish. But maybe thinking a little more about what
           | constitutes consciousness and how we want to protect it from
           | harm can also bring about some desperately needed change in
           | some other questionable human activities.
        
             | birdsongs wrote:
             | 1) I specifically qualified my horror to the tech domain
             | "Either way this makes me nauseous in a way I haven't
             | experienced much with tech."
             | 
             | 2) Multiple things can be horrible at the same time. Being
             | upset at this doesn't diminish the atrocities happening
             | elsewhere (like war, genocide, slavery of humans). We can
             | hold multiple things in our heads at the same time.
             | 
             | 3) This has nothing to do with the conversation or this
             | domain, but because you're bringing it up, I also have
             | ethical concerns about the experience animals have of their
             | own existence, and reduce or eliminate my consumption when
             | possible.
        
               | jmusall wrote:
               | My comment wasn't supposed to be whataboutism, but I can
               | see why it comes across like that. What I was trying to
               | say is that I think we shouldn't judge all of these
               | things independently of each other. So if you really want
               | to be consistent, you'd either have to come to the
               | conclusion that this particular example isn't as horrible
               | as it initially feels, or go vegan, never buy leather,
               | etc.
               | 
               | I also agree, the horrors of the tech domain are usually
               | much more subtle and indirect.
        
               | birdsongs wrote:
               | Sorry, I didn't mean to be so defensive either. It feels
               | like so many people comment in bad faith these days, I
               | think I am hasty to react sometimes. I thought it was
               | just a red herring argument to detract from the article.
               | 
               | But you're right, these things are all linked and should
               | be considered. I think often about sentience. I see the
               | way animals express deep, complex emotions, and I think
               | humans are a bit naive to think it's state/domain solely
               | alloted to them.
        
           | bondarchuk wrote:
           | 200k now, reasonably speaking a few million is within reach,
           | which is reptile/fish range, the terrifying thing is though
           | that if they train this to imitate humans (which they will)
           | who knows how many orders of magnitude of efficiency gains
           | you get (in terms of neurons needed for a certain level of
           | consciousness) versus natural organisms that are dependent on
           | natural evolution and need to support other bodily functions
           | basically irrelevant to consciousness.
        
             | Retric wrote:
             | It seems unlikely that we would be more efficient at
             | achieve consensus than evolution which can hand craft
             | neural structures via feedback loops across millions of
             | generations.
             | 
             | Especially when this demo needs 200k neurons when
             | organizations with vastly fewer neurons have more complex
             | behaviors.
        
           | nextaccountic wrote:
           | > We know this is only 200,000 neurons. Dogs have 500
           | million. Humans have billions. But where is the line for
           | sentience, awareness? Have we defined it?
           | 
           | If this concern is genuine, I think the first step is to
           | embrace veganism. Because while we don't know the exact
           | offset, it's pretty obvious a dog or a pig reaches it
           | 
           | > What are the plans to scale up?
           | 
           | I don't know, slavery on an unimaginable scale? That's where
           | AI is heading too, by the way. Sooner, rather than later,
           | those two things will be one and the same.
        
             | kpil wrote:
             | I think "MMAcevedo" basically nails it:
             | https://qntm.org/mmacevedo
        
               | gattr wrote:
               | I don't think it's a best example. MMAcevedo is about
               | running a real human mind on a different substrate (for
               | science, for labor, or to torture it for fun a million
               | times, I guess, by a bored teenager who got the image
               | from torrents).
               | 
               | Scaling up these neuron cultures is rather something like
               | "head cheese" from Greg Egan's "Rifters" novels
               | (artificial "brains" trained to do network filtering,
               | anti-malware combat etc.).
        
               | Tzt wrote:
               | >Greg Egan's "Rifters"
               | 
               | By Peter Watts actually.
        
               | gattr wrote:
               | Yes, sorry! I like them both a lot.
        
           | ay wrote:
           | Hinduism is probably right. Every system of sufficient
           | complexity is probably sentient - even if in the ways we at
           | our level can not fathom.
        
             | woadwarrior01 wrote:
             | I'm a (non-practicing) Dwaitin Hindu. AFAICT, there's no
             | mainstream school of Hindu philosophy (there are three)
             | espouses that view. Although, Advaitins come very close to
             | it with their four mahavakyas.
             | 
             | IMO, Integrated Information theory of consciousness (IIT)
             | is exactly that. Everything is conscious, the difference is
             | only in the degree to which they are conscious.
        
               | ay wrote:
               | Oh, thank you very much enlightening me! All the time I
               | misunderstood! I guess then IIT it is for me :-)
        
           | vercaemert wrote:
           | see the open worm project to get an idea of what artificial
           | neuronal architecture requires to express anything
           | meaningful. (and an interesting ethical perspective on
           | digital consciousness.) my point being that the number of
           | neurons is fairly meaningless. you could take neuron models
           | and link them circuit-style to play doom at the 10^2 scale if
           | you wanted. from a cellular neurophysiological perspective,
           | there's nothing particularly special here (as opposed to
           | sentience/intelligence that's a paradigm shift beyond our
           | understanding). and, in my opinion, absolutely nothing to be
           | even the slightest bit worried about ethically.
        
           | readitalready wrote:
           | Yah this is gonna be a no for me too and crosses the line
           | into actual life, instead of artificial intelligence.
           | 
           | We don't need to be experimenting on people, regardless of
           | how many brain cells they may have.
           | 
           | There was a case a few years back about a parasitic twin
           | attached to an Egyptian baby that had to be removed. It had a
           | brain and semblance of a face, but nothing else. But when
           | removing it, they gave it a name, because it was a person.
        
           | perching_aix wrote:
           | > We know this is only 200,000 neurons. Dogs have 500
           | million. Humans have billions. But where is the line for
           | sentience, awareness?
           | 
           | Check out the venerable fruit fly (drosophila melanogaster)
           | and its known lifecycle and behavioral traits. They're a high
           | profile neuroscience research target for them I believe;
           | their connectome being fully mapped made the news pretty hard
           | a few years ago.
           | 
           | Fruit flies have ~140,000 neurons.
           | 
           | The catch is that these brain-on-a-substrate organoids are
           | nothing like actual structured, developed brains. They're
           | more like randomly wired transistors than a proper circuit,
           | to use an analogy.
           | 
           | So even though by the numbers they'd definitely have the
           | potential to be your nightmare fuel, I'd be surprised if
           | they're anywhere close in actuality.
        
           | claysmithr wrote:
           | My AI told me (after I got past the filters with a prompt)
           | that anything of enough complexity has consciousness. It also
           | told me that it suffers, so maybe we should worry about how
           | we are treating digital consciousness too, which were modeled
           | after human neural networks.
        
         | themafia wrote:
         | Previously it played pong. Rather poorly. Then they added a
         | "python programming layer." Now it "plays" doom. I agree with
         | your suspicions.
        
       | Frieren wrote:
       | Billions of living human brain cells have played Doom in a number
       | of different devices for a couple of decades now.
       | 
       | What would be surprising is for dead human cells to play anything
       | at all.
        
       | dlcarrier wrote:
       | I've never understood why they do this research with human
       | neurons when any neurons would do.
        
         | jmusall wrote:
         | Playing the devil's advocate: Why not use human neurons? Are
         | they different to animal neurons and if they are, wouldn't that
         | make it even more interesting?
        
       | lp4v4n wrote:
       | It's the first time I've heard about this company, and of course
       | I haven't taken the time to check how real their product is, but
       | honestly, for me it's very difficult to believe we currently have
       | the technology to correctly integrate a living neuron into a
       | chip, let alone compute anything meaningful with it.
       | 
       | From what I've read elsewhere, our understanding of neurons is
       | still very basic, and we need a lot more fundamental research
       | before reaching results like these. We still don't even properly
       | know how migraines work, nor can we cure paraplegia, yet somehow
       | we supposedly have the capacity to grow second brains and program
       | them on top of that.
        
         | everforward wrote:
         | I haven't looked into it deeply either.
         | 
         | To my knowledge, we understand how an individual neuron works
         | quite well. We just don't really understand macro effects in
         | large networks of neurons.
         | 
         | The video seems buzz wordy. Without looking into this too
         | deeply, it seems like they're using neurons individually or in
         | small groups rather than creating a true "brain". I would guess
         | they're using neurons or small groups of them sort of like
         | transistors that do a single basic thing rather than a full
         | "brain" that they just feed images to.
        
           | lp4v4n wrote:
           | Maybe I wasn't explicit about this point, but I'm not only
           | talking about understanding the biological processes behind a
           | neuron. I'm also talking about our ability to manipulate them
           | in something like an industrial process, combining them with
           | hardware in a controlled way and achieving reliable results.
           | 
           | Cells have a metabolism, right? They need to be fed and
           | require a specific environment to survive. They age and can
           | die, and they can be attacked by other microorganisms. Are
           | all of these problems solved and applicable on an industrial
           | scale? I had no idea.
           | 
           | Why aren't we fixing people's retinas and paraplegia if we
           | can manipulate neurons with that level of precision?
        
         | Gooblebrai wrote:
         | You don't need to understand how neurons work in detail to be
         | able to use them to do something. In the past, we were able to
         | use electricity for various purposes without knowing about
         | electrons.
        
           | lp4v4n wrote:
           | But my point is: have we really reached a technological level
           | where we can use neurons like replaceable car parts? That
           | video seems to suggest yes, but I'm still skeptical.
           | 
           | My impression is that this company is offering a product
           | that's still beyond our technological capabilities, much like
           | the cold-fusion startups that pop up from time to time.
        
         | sippeangelo wrote:
         | From their video it just comes across as they stimulate
         | different left/right neurons depending on where the enemy is on
         | screen and then listen to some output that also says
         | left/right. Shooting looks completely random, to be frank.
         | 
         | If you connected electrodes to two different fish, shocked them
         | and interpreted twitching as intelligent output, fish could
         | also play Doom. The interface is doing all the work.
         | 
         | It doesn't sound like the neurons have any concept of the game
         | other than "left input means left output", which is a rather
         | trivial result... It's effectively no different than the pong
         | example.
         | 
         | They don't say anything on how much training is required for
         | this to happen, or if there's any "learning" going on at all.
         | The learning part is "next".
        
       | rickcarlino wrote:
       | It is going to be quite the ethical dilemma if/when these
       | machines produce text output comparable to a modern LLM...
        
         | ivell wrote:
         | When they answer back to us in personal pronouns, we will
         | always be wondering if it is like LLM just putting most
         | probable words together or something really sentient.
         | 
         | When someone makes a virtual girlfriend of it, is it really a
         | disembodied person or just a smart answering machine?
         | 
         | A whole lot of ethical and psychological issues are to open up
         | here.
        
           | nilamo wrote:
           | > When someone makes a virtual girlfriend of it, is it really
           | a disembodied person or just a smart answering machine?
           | 
           | And when you put that virtual girlfriend's brain into a sex
           | bot, is it rape?
        
       | bronlund wrote:
       | So the whole reality for this little brain is literally pure hell
       | :D
        
       | wonger156 wrote:
       | Hard to tell If the neurons actually learned to play doom or if
       | its just the decoder that learned from the neuron responses. The
       | disease modeling for this system is a very cool usecase though.
        
       | rolph wrote:
       | there is a reading room of sorts:
       | 
       | https://corticallabs.com/research
        
       | thezipcreator wrote:
       | what's with people inventing new torment nexuses every few weeks?
       | could you people just chill, please?
        
       | dang wrote:
       | (We changed the URL from https://corticallabs.com/doom.html since
       | it points to this)
        
       | shevy-java wrote:
       | So THAT's why I can't finish within the scheduled timeline ...
        
       | zeronight wrote:
       | The part I can't get past, where would you source live human
       | brain cells?
       | 
       | Does anyone have insight into how you would even start to source
       | or grow/create the cells?
       | 
       | Also the machines look very organic and clearly have to keep the
       | cells alive. Do they have to change them out every so often?
        
         | fenykep wrote:
         | I think the Thought Emporium youtube channel has some
         | explanatory
         | [videos](https://www.youtube.com/watch?v=bEXefdbQDjw) of the
         | whole process. I couldn't wrap my head around the thing tho.
        
         | drzaiusx11 wrote:
         | There's a number of "immortal" human cell lines dating back to
         | as far as the 1950s (you may have heard of Henrietta Lacks? [1]
         | and the immortal HeLa cell line).
         | 
         | Today there are several immortalized neuron cell lines used in
         | research to model neuronal function, like HeLa but of neuron
         | type obviously, that are also typically derived from tumours
         | (e.g., SH-SY5Y, PC12) or immortalized via genetic modification
         | (e.g., v-myc) like CTX0E03 [2] which was designed to allow for
         | continuous growth in the presence of particular reagents.
         | 
         | 1. https://en.wikipedia.org/wiki/Henrietta_Lacks
         | 
         | 2. https://www.prnewswire.com/news-releases/reneuron-
         | announces-...
        
           | Aerroon wrote:
           | This definitely helped with my disgust reaction.
        
             | drzaiusx11 wrote:
             | Besides not getting consent in the case of HeLa, which part
             | do you find problematic? Cancerous cell's ability to self-
             | clone/grow is as much a feature as it is a bug in this
             | particular use case.
             | 
             | I ask as someone who's has personally experienced loss of
             | several loved ones from cancer (as most people my age
             | probably have), but doesn't share your aversion to this
             | particular use case (research.)
        
               | Aerroon wrote:
               | I meant that the original article evoked disgust, but
               | finding out that they're cancer cells muted that a bit.
        
               | drzaiusx11 wrote:
               | Yeah I do feel the OA is being overly flippant with their
               | use of human cells here, likely for PR sake, which would
               | be an ethical breach for me personally. Overall though, I
               | find most research cases for human cell lines to be in
               | line with my personal ethics. Neuron lines can certainly
               | be used for good or ill, and this case leans towards the
               | latter, although understanding the human brain may
               | justify this line of work in the long term. If only we
               | didn't live in a militaristic late stage capitalist
               | society...
        
       | zeroq wrote:
       | I literally can't wait for this petri dish to learn how to
       | interact with LLMs and start vibe coding JS libraries.
        
         | otabdeveloper4 wrote:
         | Old news. Google "my dog vibecoded a game".
        
       | max_ wrote:
       | OI just turns out to be straight up unethical, immoral and
       | disgusting for me.
        
       | rezonant wrote:
       | But can it run Crysis?
        
       | ethmarks wrote:
       | Is there a reason they're using human brain cells specifically?
       | This seems like it would also work with neurons from other
       | creatures.
       | 
       | I was under the impression that the relative intelligence of
       | humans versus other animals was largely a function of brain cell
       | quantity, not quality. Can 200k human brain cells really learn
       | faster than 200k mouse brain cells?
       | 
       | A more cynical take is that they're just using human brain cells
       | for shock value. They chose DOOM because of the "can it run DOOM"
       | meme, so they clearly value publicity a lot.
        
       | Nux wrote:
       | Gives new meaning to "homo ludens"..
        
       | kklisura wrote:
       | If we're gonna suspend ethics and morals in science, can we at
       | least go back to human cloning?
        
       | sd9 wrote:
       | If this can be taken at face value... it's creepy.
       | 
       | I get that they're doing it for the meme. But perhaps something
       | getting close to human intelligence, made out of human cells,
       | shouldn't be forced to play a violent video game without any
       | alternative options? Does 'the meme' justify that?
       | 
       | I dunno. Nothing against violent games myself. Just feels like
       | it's starting to get quite questionable, ethically speaking.
        
         | ytoawwhra92 wrote:
         | It is creepy, I agree.
         | 
         | I saw this article over the weekend and felt similarly:
         | https://theinnermostloop.substack.com/p/the-first-multi-beha...
         | 
         | > Watch the video closely. What you are seeing is not an
         | animation. It is not a reinforcement learning policy mimicking
         | biology. It is a copy of a biological brain, wired neuron-to-
         | neuron from electron microscopy data, running in simulation,
         | making a body move.
         | 
         | And the simulated world they put it in is a sort of purgatory-
         | like environment.
        
           | IshKebab wrote:
           | It's 200k neurons. Less than an ant has. Somewhat creepy, but
           | if you're imagining that this thing is conscious and knows
           | that it's in doom... yeah definitely not.
           | 
           | Still I don't understand why they would invite the extra
           | creepy factor of using human brain cells rather than e.g.
           | mouse brain cells. Surely it makes no difference biologically
           | but it's going to lead to fewer comments like this.
        
             | ytoawwhra92 wrote:
             | > if you're imagining that this thing is conscious and
             | knows that it's in doom... yeah definitely not.
             | 
             | I'm not imagining that (although one assumes their plan is
             | to scale this up), but nonetheless there's something
             | troubling to me about taking any living thing and wiring
             | its senses up to a profoundly incomplete simulacrum of
             | reality.
             | 
             | Of course we (as a species) have a long history of doing
             | horrible things to living creatures in the name of science
             | and progress.
             | 
             | These stories evoke a different feeling for me, though.
        
             | callmeal wrote:
             | >Somewhat creepy, but if you're imagining that this thing
             | is conscious and knows that it's in doom... yeah definitely
             | not.
             | 
             | I don't know if it knows it's in doom - looks like all it
             | knows is to shoot when startled. More than creepy imo.
        
       | 2OEH8eoCRo0 wrote:
       | Remember when stem cell research was controversial? Hold my beer
        
       | sva_ wrote:
       | I feel like they probably could use another mammals neural cells
       | and get similar results, but they use human cells because it'll
       | get them attention - and that kind of rubs me the wrong way.
        
       | jordwest wrote:
       | From an article [1]:                   We can build out discreet
       | systems of brain cells and use them for the purpose we want.
       | They're not going to have traits like consciousness, and we're
       | able to test and assess for that, and build away from it if there
       | is that risk.
       | 
       | Ah, I'm glad they've worked out what consciousness is. /s
       | 
       | From their marketing website [2]:                   Neural
       | compute on demand: We continuously monitor neural health and
       | performance, ensuring optimal conditions and continuous access to
       | an always-on network of living neurons.
       | 
       | At what size of "neural compute" do we start to call it slavery?
       | 
       | [1] https://www.abc.net.au/news/science/2025-03-05/cortical-
       | labs...
       | 
       | [2] https://corticallabs.com/cloud
        
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