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Re:Ask HN: What is the current state of "logical" AI? by mewpmewp2 on Tuesday December 26, 2023 @11:16AM (#38773021)
Aren't animals trained to do all of those things through evolution? Similarly how GPT is trained.

Also how do you prove that GPT is worse at counting?

Because GPT can currently count both apples and oranges.

Re:Ask HN: What is the current state of "logical" AI? by nicklecompte on Tuesday December 26, 2023 @12:53PM (#38774019)
> Also how do you prove that GPT is worse at counting?

Back in June 2023 GPT-4 was dramatically worse at counting than a pigeon in the sense that it couldn't accurately tell the difference between sentences with 3 words and sentences with 5 words, whereas pigeons can count almost anything up to about 10. It also routinely failed "pick the shorter sentence" tests which I literally took from a test administered to mice. GPT simply doesn't understand what numbers are, whereas pigeons and mice have an intuitive understanding similar to toddlers. You don't need to teach kids what 3 means, you just need to teach them the human symbol for the concept of 3. GPT only has the human symbol and does not seem capable of understanding the concept.

In my testing GPT-4 consistently failed counting / pattern-recognition tests even if you used "chain-of-thought" prompting. As far as I could tell its only true understanding of numbers was "one, two, many." This seems reflected in real use cases, where GPT routinely (and hilariously) ignores commands to return 50 words/etc of output. GPT doesn't know what fifty means, it just knows what various documents that say "word count: 50" look like, and tries to imitate the tone.

Since transformer neural networks lack recursion I conjecture that GPT will never be able to understand a number larger than 2, even if in specific cases it can solve counting problems up to eleventy billion. This is what I mean by "counting apples, not oranges," its sense of counting is paper-thin and easily fooled by adversarial prompts. It is much harder to fool a mouse or a pigeon.

Many of the tests I ran back in April 2023 no longer work. I strongly suspect this is because OpenAI trained GPT to many of the tests that people were throwing at it, and not because GPT actually became "smarter." I stopped messing around with GPT specifically because OpenAI doesn't issue any release notes, making replicability impossible. Mistrial's 77B model was dramatically worse than even GPT-3 at counting, but I doubt they trained it to count. Not sure about LLaMa/etc.

Re:Ask HN: What is the current state of "logical" AI? by mewpmewp2 on Tuesday December 26, 2023 @01:00PM (#38774099)
When you are talking about "counting", do you mean the logical process of going "one", "two", "three"... or do you mean the ability to statistically estimate the amount of quantity by the amount of signal you are processing?

E.g. are pigeons actually "counting" as in the process how humans calculate to be accurate? Or are they just responding to the signal? Like similar to how a person could tell whether some sound is higher or lower pitch, but they wouldn't be able to actually numerically say the actual exact frequency.

Because to me pigeons are just similarly responding to the amount of "signal" they are receiving, not actually doing abstract reasoning.

And looking at the science studies, it also seems that they had to train pigeons to be able to count, they weren't able to do it out of the box.

Re:Ask HN: What is the current state of "logical" AI? by mewpmewp2 on Tuesday December 26, 2023 @01:05PM (#38774155)
But by the way, when you are criticising GPT's ability to count words in the sentences you are saying, that is quite odd to me. Because the input that GPT receives is actually tokens, not the words you give it.

So then imagine if someone asked you a question in English, and then translated it to hieroglyphs, and you didn't know English. Would you be able to count how many words were there in the original English?

So it seems weird to expect that GPT would be able to count in the first place.

But however if it later was taught how many words the combination of different tokens yielded to, it would be able to do that. So perhaps this is what was taught to it meanwhile yielding in that better ability to count words?

Re:Ask HN: What is the current state of "logical" AI? by mewpmewp2 on Tuesday December 26, 2023 @01:10PM (#38774213)
Thirdly GPT with Vision can count objects on an image very well, doesn't matter what the objects specifically are. Does it make mistakes? Sometimes, when objects are not clearly visible, but so would humans and pigeons.
Re:Ask HN: What is the current state of "logical" AI? by inimino on Tuesday December 26, 2023 @11:36AM (#38773241)
> Aren't animals trained to do all of those things through evolution? Similarly how GPT is trained.

No. Animals evolved and are able to do those things. Evolution is not training, and evolution has approximately zero to do with how transformers work.

Re:Ask HN: What is the current state of "logical" AI? by mewpmewp2 on Tuesday December 26, 2023 @11:57AM (#38773456)
What's the difference here?

Both seem to have adaptive neural networks where those networks change as time goes on due to a reward - for animals, mutated genes being more likely to be given forward if the change was good. Over millions of generations it's statistically likely that more good genes that caused the neural networks to be in a state that is better able to solve problems within the environment get passed on, eventually resulting in an emerging intelligence. For training you similarly change the state of the neural network depending on whether the answer is good or bad.

Re:Ask HN: What is the current state of "logical" AI? by nicklecompte on Tuesday December 26, 2023 @12:22PM (#38773714)
The bigest difference is that training does not change the size or architecture of an artificial neural network, but biological evolution dramatically changes the size and architecture of animals' brains.

Your comparison is sincerely vacuous. It vaguely makes sense if you're talking about GPT-3 to GPT-4 (though I don't think it's helpful). It makes no sense if you're talking about training a single neural network.

Re:Ask HN: What is the current state of "logical" AI? by mewpmewp2 on Tuesday December 26, 2023 @12:51PM (#38774002)
I mean that exposure to a lot of training material yielded in the final set of capabilities. Pigeons and their ancestors were exposed to certain situations throughout evolution that yielded in the formation of neural network and its ability to "count". Which I believe is not actual "one, two, three", but just the amount of signals being activated resulting in a certain output from pigeon. There's a difference in how a human counts, except for small numbers which you can intuitively immediately come up with a number.

There was training material which were situations to which organisms had to produce output for and if the output was good their genetics survived, eventually forming the neural network that was able to handle this training material well, but similarly producing emergent behaviour like being able to "count".

But GPT-Vision can easily do as well what a Pigeon can. What's the exact thing that implies Pigeon is doing it somehow more intelligently?

If you ask them on a picture the quantity of something, I'm pretty sure both respond to the amount of this type of signal received either though light waves or pixels encoded for GPT.

Re:Ask HN: What is the current state of "logical" AI? by RaftPeople on Tuesday December 26, 2023 @02:07PM (#38774857)
> Aren't animals trained to do all of those things through evolution? Similarly how GPT is trained.

If you interpret this question at the most abstract level of "aren't both solutions arrived at through training/trial+error method?" - then the answer is probably yes, they are both arrived at in some conceptually similar manner.

But they are two very different underlying systems and we don't really understand the biological systems well enough to even be able to truly compare.

Beyond that, it seems that humans (switching to humans from pigeons) have some sort of representation/understanding of the world around us such that even if we produce the same result as ChatGPT to a counting question, the information stored within our systems is not equivalent.

Re:Ask HN: What is the current state of "logical" AI? by mewpmewp2 on Tuesday December 26, 2023 @02:17PM (#38774984)
> aren't both solutions arrived at through training/trial+error method?

But also an underlying neural network type of structure that takes in input, and produces output and changes underneath to then have emerging capabilities (like the counting).

> But they are two very different underlying systems and we don't really understand the biological systems well enough to even be able to truly compare.

Beyond that, it seems that humans (switching to humans from pigeons) have some sort of representation/understanding of the world around us such that even if we produce the same result as ChatGPT to a counting question, the information stored within our systems is not equivalent.

What is the reason to believe that the way pigeons count is anything other than it responding to certain signals

1. Light waves coming as input.

2. Some transformation layers that will abstract the input further.

3. Then pigeons do not really count as people do, but they just respond to the rough feeling of "quantity" or amount of signal received. Because as I understand the studies prove the ability to "count", by them having to just differentiate between counts, and getting rewarded if they are able to do it.

And GPT-Vision can easily do similar things. I can give it an image and ask how many objects are there, and up to an amount it can answer correctly given the image is clear enough.

Similarly pigeons didn't have 100% accuracy in counting. So they are not doing the "one, two, three", they are just seemingly responding to "amount of signal" to me. Similar to how we would be able to tell that certain sound is louder than the other, we are not actually counting the frequencies of the sound. We do not even know what produces the sound. We just decipher that one signal is louder than the other one.

Pigeons after being trained to respond to certain amount of something will associate a strong signal from there with that reward. This seems like what a very basic machine learning algorithm can handle, even more basic or smaller in scale than an LLM. So what makes an animal smarter then?

Re:Ask HN: What is the current state of "logical" AI? by RaftPeople on Tuesday December 26, 2023 @03:09PM (#38775544)
> But also an underlying neural network type of structure that takes in input, and produces output and changes underneath to then have emerging capabilities (like the counting).

Sure, at an abstract level you could say that, but it requires such a level of abstraction that comparisons don't really mean much. The differences in how the systems function could cause significant differences in underlying functionality and emergent behavior.

For example, some differences when you get into the details:

1-Biological brains have astrocytes that manage the synapses and activity of neurons, constantly and dynamically bringing together different and changing populations of neurons to perform functions (inhibiting some and enhancing activation in others).

2-Neurons aren't the only computational units, astrocytes are also computational units involved in (at minimum based on recent studies) learning and object recognition.

3-Some cells like Purkinje cells learn patterns even when isolated. Something within the cell is learning/storing information about timed patterns of activity and can respond appropriately when the pattern is re-encountered.

4-Dendrites frequently perform preprocessing on signals prior to the signal being forwarded to the neurons soma.

5-Rabbit's olfactory learning and memory is interesting, read up on it if you get a chance. A neuroscientist expert in that field has a theory that matches the data that the network within the olfactory region goes through a minimum-energy type of reconfiguration each time a new scent is detected that is related to some positive or negative. This is interesting from the perspective of how do brains get dynamically reconfigured with learning.

Re:Ask HN: What is the current state of "logical" AI? by mewpmewp2 on Tuesday December 26, 2023 @03:56PM (#38775975)
> 1-Biological brains have astrocytes that manage the synapses and activity of neurons, constantly and dynamically bringing together different and changing populations of neurons to perform functions (inhibiting some and enhancing activation in others).

Wouldn't this be something that could be mirrored or performed even better by just having more layers of neurons in the network. Of course in addition you could have multiple LLMs doing such work together of selecting best optimised systems for a given work. But it seems like astrocytes based on my limited knowledge are more for the reason of maintenance for biological systems which LLMs wouldn't necessarily have to deal with in the first place. So I'm not sure what kind of advantage astrocytes exactly would bring.

> 2-Neurons aren't the only computational units, astrocytes are also computational units involved in (at minimum based on recent studies) learning and object recognition.

But again - what benefits would they provide more over extra layers or LLMs that act together according to an orchestrating LLM?

> 3-Some cells like Purkinje cells learn patterns even when isolated. Something within the cell is learning/storing information about timed patterns of activity and can respond appropriately when the pattern is re-encountered.

But neural networks can in general learn patterns when isolated. It also seems they are more for physical movement, which we should care more about when building robots rather than text based intelligence. Although it seems like for physical movement there's other blockers, like materials. It's all data structures that take input and produce output, which they receive feedback for whether it worked out well and adapt accordingly. I'd assume if LLMs neural networks were given a look, there would be many pockets like the Purkinje cells.

> Dendrites frequently perform preprocessing on signals prior to the signal being forwarded to the neurons soma.

Again it seems like extra layers of neurons. Because I assume with LLMs and other ML tools in addition layers will start to converge on specific set of processing and functionality as they train more. Preprocessing is just a way to make a larger task into more smaller subtasks.

> Rabbit's olfactory learning and memory is interesting, read up on it if you get a chance. A neuroscientist expert in that field has a theory that matches the data that the network within the olfactory region goes through a minimum-energy type of reconfiguration each time a new scent is detected that is related to some positive or negative. This is interesting from the perspective of how do brains get dynamically reconfigured with learning.

I should

But I mean overall, it all seems still the same concept, just orchestrated differently in certain ways and in biological sense it seems it has had to tackle problems that an LLM hasn't really had to, as it has had billions of years to evolve those layers of different systems, but having also a lot of tooling within it to deal with environmental limitations.

So it seems, that given enough computing power, we should be able to make something that is more intelligent than a human, which I do think GPT-4 already is in so many things.

I also am not sure what exactly would GPT-4 have less intelligence in compared to any animal. If you give it the proper input it should be able to perform at least at level of any animal, maybe not with same speed - as animals and as you mentioned in general there are many neural networks within human and animal bodies that correspond only to certain function and are optimised for that specifically.

Re:Ask HN: What is the current state of "logical" AI? by RaftPeople on Tuesday December 26, 2023 @06:20PM (#38777152)
> Wouldn't this be something that could be mirrored or performed even better by just having more layers of neurons in the network. Of course in addition you could have multiple LLMs doing such work together of selecting best optimised systems for a given work. But it seems like astrocytes based on my limited knowledge are more for the reason of maintenance for biological systems which LLMs wouldn't necessarily have to deal with in the first place. So I'm not sure what kind of advantage astrocytes exactly would bring.

Regarding: astrocytes and cell maintenance vs computation: The picture is getting more complex at a steady pace as scientists learn more. Now they know that astrocytes wrap around synapses (the "tripartite" synapse), detect and emit neurotransmitters and gliotransmitters, have internal calcium signaling and are involved in learning and object recognition.

Regarding: Wouldn't this be...more layers of neurons...": Possibly, maybe probably. Those examples didn't really describe any functional capability, they just described how different our machine is from many people's understanding of how our brain works, which helps illustrate why comparisons to something like ChatGPT are difficult.

> So it seems, that given enough computing power, we should be able to make something that is more intelligent than a human, which I do think GPT-4 already is in so many things.

When you say "enough computing power" do you mean just expanding ChatGPT's number of parameters and training set? I don't personally think that will do the job, I think the key is identifying and providing the specific functional capabilities that our brain utilizes. And I think that requires an approach that is different than just expanding the size of the network and training.

> I also am not sure what exactly would GPT-4 have less intelligence in compared to any animal.

Do you mean ChatGPT's current capabilities? If so, animals model the 4D environment they exist in, ChatGPT is obviously limited in areas like that. Those internal models can be key for some types of knowledge.

Re:Ask HN: What is the current state of "logical" AI? by mewpmewp2 on Tuesday December 26, 2023 @07:06PM (#38777484)
> The picture is getting more complex at a steady pace

I'm sorry, but it just still seems the same concept to me. Am I misunderstanding something? It all seems to be about having some sort of signal travelling through various pathways where there's a mechanism to reward/punish the signal which will get adapted by whichever method of storage.

It would be just a matter of having the proper weights and pathways for the signal to travel to yield desired results. The issues will be with performance as in how fast we get results from the signal, but non the less the concept seems the same to me.

> Possibly, maybe probably. Those examples didn't really describe any functional capability, they just described how different our machine is from many people's understanding of how our brain works, which helps illustrate why comparisons to something like ChatGPT are difficult.

It's just that it all seems conceptually very similar to me. And when I try to reason how my own intuition and reasoning works it all makes sense. Fast and slow thinking make sense as well. Fast thinking or "intuition" is one that will give you the gut feeling about something, which I believe is case for animals as well as for machine learning algorithms. The "model" of the World, both I and LLMs have. The model is in some way represented in the connections and weights of the neurons and other things. Slow thinking is kind of firstly brainstorming ways to solve a problem - which LLMs can do, and then bruteforcing them, coming back back, solving the maze. LLMs may not have perfected this completely yet, but it doesn't honestly seem that far away to me, and I wouldn't be surprised if it was just a problem of scaling up the amount of neurons/layers, etc.

> When you say "enough computing power" do you mean just expanding ChatGPT's number of parameters and training set? I don't personally think that will do the job

I can't guarantee it yet, but seeing the difference between e.g. gpt-4 and gpt-3.5 and open-source models, then there seems to be clear different in power of understanding instructions and coming up with very impressive ways to solve problems in my view. So considering I haven't seen what is next level of gpt-4 yet, it's hard for me to believe there wouldn't be a significant jump in performance when increasing magnitude - unless someone has already tried it and it was proven not to matter.

I will be able to have a more accurate opinion I suppose when I see what gpt-5 can do. Because to me gpt-3.5 is quite useless, but gpt-4 is amazing for so many use-cases which I've tried. And in my view the neurons and the connections must represent some form of modelling of the World to be able to explain those results.

If expanding it isn't enough, then I would still believe now - after having seen gpt-4, that if we try enough different arrangements we can reach human level intelligence.

> Do you mean ChatGPT's current capabilities? If so, animals model the 4D environment they exist in, ChatGPT is obviously limited in areas like that. Those internal models can be key for some types of knowledge.

Can you give an example of a problem that animal can solve that GPT couldn't?

Because GPT can handle 2d, 3d, I'm not sure what you mean by 4d - is that including time, like video? In this case we could try a loop where we ask for actions from GPT after presenting an image, and keeping it in feedback loop. It could prove the ability to reason, except for of course performance side of it. But performance we can solve later, at the moment I would just like to see whether it can perform at least at animal level even if not as quickly.

Re:Ask HN: What is the current state of "logical" AI? by RaftPeople on Tuesday December 26, 2023 @10:12PM (#38778691)
> I'm sorry, but it just still seems the same concept to me. Am I misunderstanding something? It all seems to be about having some sort of signal travelling through various pathways where there's a mechanism to reward/punish the signal which will get adapted by whichever method of storage.

When I said the picture is getting more complex it was in response to your statement that you thought astrocytes were just for cell maintenance, not computation, so I was providing some details about how those cells are involved in computation (not just cell maint).

> I can't guarantee it yet, but seeing the difference between e.g. gpt-4 and gpt-3.5 and open-source models, then there seems to be clear different in power of understanding instructions and coming up with very impressive ways to solve problems in my view.

While I think ChatGPT is very impressive, I don't think it has "understanding", otherwise it wouldn't happily explain to you how to calculate the 4th side of a triangle. A human knows that a triangle has 3 sides and questions about the 4th side is inconsistent with his/her internal model. ChatGPT just has statistical data about the relationship between words, which is why it told me how to calculate that 4th side.

> I'm not sure what you mean by 4d - is that including time, like video?

Yes, time, but not necessarily video. Time is incorporated into the patterns we detect and the internal models we build.

Re:Ask HN: What is the current state of "logical" AI? by inimino on Tuesday December 26, 2023 @12:18PM (#38773672)
Evolution operates on genes, which do not encode synaptic connections for one thing. The analogy you're making here is so stretched it's hard to begin to say what's wrong with it. Backpropagation and natural selection are about as different as two things can be. About the only thing you can say they have in common is that both can be modeled as optimization processes.

What's the difference between a star and a bonfire? Both use fuel and produce heat and light.

Re:Ask HN: What is the current state of "logical" AI? by mewpmewp2 on Tuesday December 26, 2023 @12:28PM (#38773768)
I mean the point was about LLMs not truly being problem solvers because they were trained to do so as opposed to having been evolved through evolution. I'm looking for what the difference is specifically within that dimension. Biological pigeons had their own process of evolution how they reached to have the type of neural networks and systems in themselves that gave them the ability to count - but not in all contexts for sure.

So yes, my point is that both have an optimisation process that through time lend them those emerging capabilities.

Re:Ask HN: What is the current state of "logical" AI? by inimino on Wednesday December 27, 2023 @12:21AM (#38779330)
No, the point was that LLMs are not good at problem solving because they are not good at problem solving, not because they were not evolved. We don't understand how we or animals solve problems, which is why we haven't yet succeeded in replicating that in AI. You're the one bringing in these incredibly strained analogies, because you want GPT 4 to be more than it is or something, I'm not sure.
Re:Ask HN: What is the current state of "logical" AI? by mtlb on Tuesday December 26, 2023 @05:32PM (#38776825)
The biological neural structures that encode behavior are “trained” through evolution, but even the most advanced animals rely mostly on conditioned (= learned during lifetime) reflexes, and not on the ones “hardcoded” evolutionary.

Certainly not much evolutionary “training” in the human brain has happened in the last 3000 years, yet advancement in our understanding of the world has been plentiful. But human thinking (including rationality, mathematics, etc.) is on a different level to even learned animalistic behavior. Some great apes were taught language and even showed basic abstract conceptual thinking, but were never able to reach the level of 3-5 years old human kids.

The problem with GPTs and other statistical models is that they can learn incredibly complex patterns in anything we can express as bytes, but not learn the simplest concepts of maths despite being trained on the whole corpus of mathematical texts available on the internet, while kids need classes that can be covered in a single textbook to understand them, and adults may need just a textbook for this.

Re:Ask HN: What is the current state of "logical" AI? by mewpmewp2 on Tuesday December 26, 2023 @07:23PM (#38777594)
The claim about those models being "statistical". Why wouldn't you consider human brain to be statistical or animal's brains as "statistical"?

Because in the end human brains as well as any brains it seems they could be thought of statistical results from long periods of training and producing output from input. Where am I wrong?

I assume by statistical you mean that the ending result of state of neurons can be represented as numbers and pathways leading through these as probabilities of going through a certain pathway - but it occurs to me that same is with human brain, no?

Re:Ask HN: What is the current state of "logical" AI? by mtlb on Wednesday December 27, 2023 @03:16AM (#38780071)
You are not wrong, but too abstract. Saying that brain is statistical and therefore can be represented with statistical model such as artificial neural net is like saying that brain is computational and therefore can be represented with a Turing-complete system, or that brain is physical and can be represented via physical simulation, etc.