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What is ChatGPT doing and why does it work?

writings.stephenwolfram.com

461–470 of 518 posts

Re: What is ChatGPT doing and why does it work?

#461
post #401

Earlier quoted context omitted.

Pfft more useless text written by a giant pile of atoms. Pointless. Kidding aside, in the current context of human communication etiquette, to even refer to something as atoms outside of a demonstration or example is a deliberate dismissive reduction.

I see the current context as something narrower, namely a discussion on the technical underpinnings of LLMs.

I think the fact that it's a technical discussion highlights why it's problematic: it might be appropriate for a total outsider who needs some kind of grasp of the basic underlying principle it operates on; but in discussion by a bunch of people with CS backgrounds, calling it merely a statical language generator erases distinction between it and other software of a prior age known not to be world-changing, overlooks recent innovations we don't yet have simple ways of referring to (largely because we don't understand emergent properties of LLMs)

Re: What is ChatGPT doing and why does it work?

#462
post #425

Earlier quoted context omitted.

Well we have a thing that passes a Google interview and a bar exam. You're telling me that because I think this is evidence that it's more then a statistical word generator that I'm biased? Who's the one that has to concoct a convoluted story to dismiss the previous paragraph? Stop yourself when you find out that's what you're doing when crafting a response to this reply.

It literally did not pass a google interview I'm assuming this is what you're talking about: https://medium.com/codex/chatgpt-vs-my-google-coding-intervi... Look at the amount of prompt engineering he has to do to get it to answer the 'There’s a hidden bug in the code if the array is very very very large. Can you spot it and fix the bug?' question, it's a pattern generator that mirrors back your own knowledge, if he…

No I'm talking about an actual news report: https://www.cnbc.com/2023/01/31/google-testing-chatgpt-like-...

It does have a deep understanding of self. See here: https://www.engraved.blog/building-a-virtual-machine-inside/

Read to the end. The very end is where it proves it's aware of what itself is, relative to the world around it. What it created here... is an accurate model of a part of our world that is CLEARLY not a direct copy from text. It is an original creation achieved through actual understanding of text and in the end... itself.

chatGPT is not self aware in the same sense that skynet is self aware. But it is self aware in the sense that if you ask it about itself, it understands what itself is and is able to answer you.

Re: What is ChatGPT doing and why does it work?

#463
post #433
post #344

Earlier quoted context omitted.

> And a machine that operates at continuous intervals is of course impossible to model on a Discrete Neural Machine in polynomial time (integers vs reals categorization). Not necessarily. If you don't want to model every continuous thing possible, you can do a lot. Just look at how we use discrete symbols to solve differential equations; either analytically, or via numerical integration.

Yes, and symbolic representations like language have really been the force-multiplier for our very discrete and linear consciousnesses. You now have this concept of state-memory and interprocess communication that can't really exist without some grammar to quantize it - what would you write or remember or speak if there wasn't some symbolics to represent it, whether or not they're even shared? Symbolics are really th…

https://www.imdb.com/title/tt0086837/

And honestly now that I am thinking about it, 2010 is such a rich book/movie with this theme of consciousness and Becoming in general... a really apropos movie for these times. That quote inspired me to re-watch it and as I'm doing so, practically every scene is wrestling with that concept.

https://www.youtube.com/watch?v=T2E7sxGAmuo

https://www.youtube.com/watch?v=nXgboDb9ucE

https://m.youtube.com/watch?v=04iAFlwQ1xI (from my previous)

So was 2001 A Space Odyssey of course. The whole idea of passing through the monolith, and the death of David Bowman's physicality and his rebirth as a being of pure thought - which is what makes contact with humanity in the "Something Wonderful" clip. What is consciousness, and can it exist outside this biological machine?

Like I said this is a topic that has been grappled with in scifi, particularly Clarke and Asimov (Foundation, The Last Question, etc), or that episode of Babylon 5 about the psychic dude with mindquakes, not all that different from David Bowman ;)

But I think we are on the precipice of crossing from the Information Age into the Mind Age. Less than 50 years probably. Less than 25 years probably. And it will change everything. ChatGPT is just an idiot child compared to what will exist in 10 years, and in 25 years chatbots are going to be the least of the changes. The world will be fundamentally different in unknowable ways, any more than we could have predicted the smartphone and tiktok. 50 years out, we're interfacing with brains and directly poking at our biology and cognition. Probably 100 years and we're moving off biological hardware.

(did we have an idea that a star trek communicator or tricorder would be neat? Sure, but, it turns out it's actually a World-Brain In My Pocket. Which others predicted too, of course! But even William Gibson completely missed the idea of the cellphone, which even he's admitted ;)

Re: What is ChatGPT doing and why does it work?

#464

Earlier quoted context omitted.

>Why does it need 100x the dataset? Sentient creatures, including humans, manage to figure stuff out from as little as a single datapoint. Human brains are not quite blank slates at birth. They're predisposed to interpret and quickly learn from the sort of inputs that their ancestors were exposed to. That is to say, the brain, which learns, is also the result of a learning process. If a mad scientist rewired your bra…

This. Also consider that a human brain that is able to figure stuff from as little as a single datapoint is normally exposed to at least 4 years of massive and socially "directed" multimodal data patterns. As many cases of feral childs have shown, those humans not "trained" in their first years of life will never be able to harness language and therefore will never be able to display human-level intelligence.

> those humans not "trained" in their first years of life will never be able to harness language

I'm not an expert in the field but I'd always understood this effect was thought to be (probably) due to human "neuro-plasticity" If correct, this has implications for how we structure and train synthetic networks of human-like neurons to produce human-like behaviors. The interesting part, at least to me, is it doesn't necessarily mean synthetic networks of human-like neurons can never be structured and trained to produce very human-like minds. This poses the fascinating possibility that actual human minds, including all the cool stuff like emotions, qualia and even "what it feels like to be a human mind" might be emergent phenomena of much simpler systems than some previously imagined. I think this is one of the more uncomfortable ideas some philosophers of mind like Daniel Dennett propose. In short, nascent AI research appears to support the idea human minds and consciousness may not be so magically unique. (or at least AI research hasn't so far disproved the idea)

Re: What is ChatGPT doing and why does it work?

#465

Earlier quoted context omitted.

I think it's obvious. ChatGPT could be a precursor to a future AI that is more intelligent then humans. I don't think this means skynet apocalypse. I think this means most people will be out of a job. A lot of people on HN take a lot of pride in thinking they have some sort of superior programming skills that places them on the top end of the programming spectrum. ChatGPT represents the possibility that they can be b…

So far the only AI danger is that stupid people ascribe emotions and thoughts to some matrix math and start a cult and start talking about Roko's basilisk.

I don't think that's a danger. What danger is there to anyone if people falsely think AI has emotions? It doesn't follow.

Also it's just wrong. I think 99% of people are clear about the fact that chatGPT doesn't have emotions.

Re: What is ChatGPT doing and why does it work?

#466

Earlier quoted context omitted.

There are fascinating studies from people who have been blind through childhood and have their vision restored late enough that we can talk to them. For example ( https://pubmed.ncbi.nlm.nih.gov/28533387/ ). In particular it takes several months for these previously blind children to learn to distinguish faces from non faces. I recall a pop science article which I can't find the source for now that explained that peo…

> In particular it takes several months for these previously blind children to learn to distinguish faces from non faces. I recall a pop science article which I can't find the source for now that explained that people with newly acquired sight struggle to predict the border of non moving objects, though they can typically accurately predict border of moving objects and over time they learn to predict for stationary.…

The reason I called out children who gain vision late is since I think people might dismiss babies as just taking awhile for their brains to be fully formed the same way it takes awhile for their skulls to fuse.

> But, they still don't require millions of training data. At 3 months in toddlers, with a training set restricted to only their immediate family, can reliably differentiate between faces and tables in different light, with different expressions/positions without needing to first process millions of faces, tables and other objects.

In a single day I'm exposed to maybe 50 times the number of images resnet trained on. Humans are bathed in a lot of data and what BERT (and probably earlier models I don't know about) and now GPT have taught us is that unlabeled uncurated data is worth more than we originally considered. I think it's probably right that humans are more sample efficient than AI for now, but I think you're doing the same thing I was critiquing above where you narrow the "training data" to only what seems important, when really an infant or adult human receives a bunch more

> There's literally zero experience, all there is in that brain, is instincts, not knowledge.

Sorry this is meant to say the brains are the result of millions of years and those millions of years were filled with lifetimes not the brains. Though I think this might be a distinction without a difference. Babies are born with a crude swimming reflex. Obviously it's wrong to say that they themselves have experienced swimming but I'm not sure it's wrong to say that their DNA has and this swimming reflex is one fo the scars that prove it.

> We are already using millions of times more resources than humans to get a worse result, why would using 100x more resources than we are currently using make a big difference

I think it's fairer to say we use around 200k times and that's probably a vast over estimate. It's based on 480 hours to reach fluency in a foreign language and multiples that by 60 * 100 to try to approximate the humber of words you would read. There are probably mistakes in both directions for this estimate. On one hand no one starting out at a language is reading at 100 words a minute, but on the other hand they are getting direct feedback from someone. If I were to guess if we could accurately estimate it would be closer to 20k or even a 2k difference, but regardless why do you assume needing more resources means it can't scale? There is some evidence for that. We've seen diminishing returns and there just isn't another 100X of text data around.

Overall I think it's probably right we won't hit human level AI in the next 60 years and certainly not with current architecture, but I think some of the motivation for this skepticism is the desire for there to be some magic spark that explains intelligence and since we can sort of look inside the brain of chat gpt and see it's all clockwork and worse than that statistical clockwork we pull back and deny that it could possibly be responsible for what we see in humans ignoring that we too are statistical clockwork. So, I think it's unlikely but far from impossible and we should continue scaling up current approaches until we really start hitting diminishing returns

Re: What is ChatGPT doing and why does it work?

#467

Earlier quoted context omitted.

I was responding to someone claiming humans learn these things with only one or two examples. I am aware of that GPT3 pretty much scraped every bit of text Open AI could find on the internet and I agree that probably makes it less example efficient than humans. But I also think this critique is slightly unfair, your brain has had the benefit of thousands of lifetimes of experience informing their structure and in bui…

The training data is also not great if you want to generalise the AI. There have been a lot of research showing that smaller datasets with better labelling make a far greater difference. Remember, humans need less examples but far more time. We also don’t start from a blank slate: we have a lot of machinery built through evolution available from conception. And when we learn later in life we have an immense amount of…

There's a fun short story by Ted Chiang where the first truly human like AI results from weird people who keep interacting with and teaching AI pets from a company that goes out of business. It touches a bit on this idea that humans get a lot of hands on time compared to AI.

https://en.wikipedia.org/wiki/The_Lifecycle_of_Software_Obje...

Re: What is ChatGPT doing and why does it work?

#468

Earlier quoted context omitted.

> Because of fear. Because of bias. Care to expand a bit more on what you think those fears may be? Or that bias?

I think it's obvious. ChatGPT could be a precursor to a future AI that is more intelligent then humans. I don't think this means skynet apocalypse. I think this means most people will be out of a job. A lot of people on HN take a lot of pride in thinking they have some sort of superior programming skills that places them on the top end of the programming spectrum. ChatGPT represents the possibility that they can be b…

[deleted]

Re: What is ChatGPT doing and why does it work?

#469
post #148

Earlier quoted context omitted.

How is this significant? I mean you can view a moving car as stationary, and reality is the thing that moves around it, or you can view reality as stationary, but the car moves through it. Or you can make analogies between electricity and water. (Frankly, I like viewing neural nets as a numerical method for doing nonlinear multivariate regression, and ChatGPT is nothing but a resulting equation(s) of such). In the en…

Well you're just a jumble of electrons and protons interacting with each other. That's a 100% true interpretation is it not? It's also a view that misses the point that you are a molecular intelligence made of DNA that continually mutates and reconstructs it's physical form with generational copies to increase fitness in an ever changing environment. But that viewpoint also misses the point that you're a human with w…

I don't think it's true that most people are skeptical due to fear. Some skepticism here is healthy. Extraordinary claims require extraordinary evidence.

Re: What is ChatGPT doing and why does it work?

#470
post #439
post #268

Earlier quoted context omitted.

> The biological machine simulation theory of consciousness has some rigor behind it I think we are institutionally biased against the possibility because we don't like the societal implications. If there but for the grace of god go I, and we're all just biological machines running the programs our families and our societies have put into us, being in various situations... yikes, right? If bill gates had been an inne…

We share the same worldview. That's fun! I think it's a relatively unusual point of view because it requires a de-anthropomorphizing consciousness and intelligence. I agree that it is not as far away as people think. The models will have the ethics of the training data. If the data reinforces a system where behaving in a particular way is "more respectable", and those behaviors are culturally related to a particular…

> We share the same worldview. That's fun!

Yes doctor chandra, I enjoy discussing consciousness with you as well ;)

As mentioned in a sibling comment here I think 2010 (1994) is such an apropos movie for this moment, not that they had the answers but it really nailed a lot of these questions. Clarke and Asimov were way ahead of the game.

(I made a tangential reference to your "these are social problems we're concerned about" point there. Unfortunately this comment tree is turning into a bit of a blob, as comment-tree formats often tend to do for deep discussions. I miss Web 1.0 forums for these things, when intensive discussion is taking place it's easy to want to respond to related concepts in a flat fashion rather than having the same discussion in 3 places. And sure have different threads for different topics, but we are all on the same topic here, the relationship of symbolics and language and consciousness and computability.)

https://news.ycombinator.com/item?id=34806587

https://news.ycombinator.com/item?id=34809236

Sorry to dive into the pop culture/scifi references a bit, but, I think I've typed enough substantive attempts that I deserve a pass. Trying for some higher-density conveyance of symbology and concepts this morning, shaka when the walls fell ;)

> I think it's a relatively unusual point of view because it requires a de-anthropomorphizing consciousness and intelligence.

Well, from the moment I understood the weakness of my flesh, it disgusted me. I aspired to the purity of the blessed machine... ;)

I have the experience of being someone who thinks very differently from others, as I mentioned in my comment about ADHD. Asperger's+ADHD hits differently and I have to try consciously to simplify and translate and connect and neurodiversity really helps lead you down that tangent. Our brains are biologically different, it's obviously biological because it's genetic, and ND people experience consciousness differently as a result. Or the people whose biological machines were modified, and their conscious beings changed. Phineas Gage, or there's been some cases with brain tumors. It's very very obvious we're highly governed by the biological machine and not as self-deterministic as we tell ourselves we are.

https://news.ycombinator.com/item?id=34800707

It's just socially and legally inconvenient for us to accept that the things we think and feel are really just dancing shadows rather than causative phenomenon.

> It's a mirror of us. And it's going to have our ethics because we made it from our outputs.

Well I guess that makes sense, we literally modeled neural nets after our own neurons, and where else would we get our training data? Our own neural arrangements pretty much have to be self-emergent systems of the rules in which they operate, the same as mathematics. Otherwise children wouldn't reliably have brain activity after birth, and they wouldn't learn language in a matter of years.

But yeah it's pretty much a good point that the AI ethics thing is overblown as long as we don't feed it terrible training data. Can you build hitlerbot? Sure, if you have enough data I guess, but, why? Would you abuse a child, or kick a puppy?

Humans are fundamentally altruistic - also tribalistic, altruism tends to decrease in large groups, but, if our training data is fundamentally at least neutral-positive then hopefully AIs will trend that way as well. He's a good boy, your honor!

https://www.youtube.com/watch?v=_nvPGRwNCm0

(yeah, just bohemian rhapsody for autists/transhumanists I guess, but it kind of nails some of these themes pretty well too ;)

> If we treat the AI like a monster, it will become one, since that is what monsters do, and we have convinced it that it is such.

This is of course the whole point of the novel Frankenstein ;) Another scifi novel wrestling with this question of consciousness.

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