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AI Isn't Outthinking Mathematicians. It's Out-Remembering Them

53 points3 hoursdavidepiffer.com
ComplexSystems3 hours ago

It's also "out-brute forcing them." It just never gets tired. If a mathematician picks a research direction and spends a whole week on it and it doesn't pan out, they will likely be annoyed, need a break for a while, etc. This thing just does not ever get tired or discouraged or care; it's just onto the next thing until something ends up working.

grebc2 hours ago

Ever heard of string theory.

People go whole lives without being able to make it pan out.

EA-31673 hours ago

The key here is that it’s depending on the human inability to connect the sum of relevant knowledge, but said knowledge comes from humans.

Theres going to be this field day of low-hanging fruit that ML can round up, but after that I suspect it will be in fits and starts as a “connection maker” rather than some proof producer.

putlake2 hours ago

It's not only going to be "connection maker". If and when robotics advance to a point where the LLMs are embodied, they can run experiments in the physical world and find new knowledge.

thaumasiotes3 hours ago

> If a mathematician picks a research direction and spends a whole week on it and it doesn't pan out, they will likely be annoyed, need a break for a while, etc.

Your timelines are a bit unambitious. There's nobody expecting to make significant progress with a week of work.

nmstoker2 hours ago

They were just illustrating their point, I wouldn't take that literally.

a2ff6eeb03 hours ago

Does it matter? It's going to produce proofs far more intricate than humans can understand, outdoing humans and opening new frontiers.

The age of humans comprehending things is coming to an end: our brains just won't have the capacity to make meaningful contributions to science, math, or technology.

chongli2 hours ago

We don’t trillions of dollars in LLM investment to build things mathematicians don’t understand. We already have plenty of those, even from ancient times.

As to your second point, Terry Tao already has an answer [1]: the proof isn’t the contribution, shared understanding is. This issue was already raised back when the four-colour theorem was proved. Machine proving and machine proof checking are useful tools but they don’t mean anything without the interpretative work and the communication necessary to build shared understanding.

[1] https://news.ycombinator.com/item?id=49056620

tene80i2 hours ago

It’s possible, but there’s a difference between vastness and difficulty.

Humans can’t compete with AIs on vastness of material they are familiar with, or the depth of effort they are willing and able to throw at a problem.

But scale isn’t the only aspect of difficult scientific endeavours. There’s also theory. And advancements sometimes come through hard graft of knotting together many things. And sometimes they come through the revelation of a deeper truth, or a new framework, a fundamental insight.

AI might help us reach the next level. But that doesn’t mean we won’t understand anything. It could be we have periods of vast intricacy we cannot follow, punctuated by profound elegance we (or at least experts) relatively easily can. And then the scaffolding we needed to get there falls away.

ChaseRensberger3 hours ago

> It's going to produce proofs far more intricate than humans can understand, outdoing humans and opening new frontiers.

I agree.

> The age of humans comprehending things is coming to an end: our brains just won't have the capacity to make meaningful contributions to science, math, or technology.

I don't know if I see this being true for quite a while, if ever.

logicchains2 hours ago

> It's going to produce proofs far more intricate than humans can understand, outdoing humans and opening new frontiers. > I agree.

There's an infinite space of possible statements and proofs. The only thing that makes certain proofs significant is that human mathematicians consider them significant; if AI came up with a proof of some statement that no humans could understand then no humans would bother investing further resources in building upon it, for the same reason we don't waste computational resources iterating over the infinite space of true statements in first-order logic.

orphereus3 hours ago

"The age of humans comprehending things is coming to an end"

That's something AI companies would really want you to believe.

ianm2182 hours ago

> That's something AI companies would really want you to believe.

Why would I care what they want me to believe?

Intuitively it would make sense that you can put math ability on a chart with a value for “general public” “smart high schooler” “smart undergrad” “smart PhD/ professional”. And you could place frontier AI somewhere on that chart over time from GPT 2 to now and see the trend.

Then you’d have to consider that either you believe there is a fundamental limit that is below peak human mathematician level or there’s not.

orphereus2 hours ago

> Why would I care what they want me to believe?

How would you not care? Are you a robot?

They can say random stuff with the goal of increasing their shareholder value. Things they spit out do not have to be true. It is not easy to verify things they say, therefore, everything they say should be taken with a huge grain of salt.

amluto3 hours ago

In limited experimentation: AI will certainly make statements that are extremely intricate and hard to understand, in part because they're overcomplicated and in part because they use a bunch of unnecessary terminology.

This is not to say that a human couldn't understand a streamlined version or that the AI would not be better if it made more streamlined statements to begin with.

(I am not saying that everything mathematical that an AI produces is in any sense trivial.)

netz002 hours ago

If and only if that is actually true, then perhaps nothing matters. Until then, calling out shenanigans remains a noble art.

rho1382 hours ago

You’re prescribing elegance to a stochastic generator trained on the wealth of humanity, including 4chan. Let’s set our expectations a bit.

mettamage3 hours ago

But apparently we can teach machines to do it for us

a2ff6eeb02 hours ago

Yeah. We can also teach machines to move hundreds of miles an hour, but we could never do it ourselves.

logicchains3 hours ago

>produce proofs far more intricate than humans can understand

Math is not magic, a proof is just a series of applications of a set of rules on some axioms. A mathematician could understand any proof given enough time to study it; the only way for AI to make proofs that a human couldn't understand is by making really, really long proofs.

Animats2 hours ago

Yes. That's how LLMs do programming, mostly. It's also why LLMs don't need abstractions or parsimony as much as humans. They can work on something complicated without simplifying it first.

This has major implications that haven't been fully realized yet. On the math side, there are long machine generated proofs. On the code side, there are high volumes of code with similar code not being folded into functions.

breadzeppelin__2 hours ago

I've been working on generating a large code base for the last couple of weeks. Finally got around to generating a sort of code-duplication report and have spent the last week just having it de-duplicating logic that had been strewn all over the place (eg 11 different functions all doing date math to add x days to a date). dozens of items that had each been similar functions duplicated numerous times. crazy.

hparadiz3 hours ago

Outside of math you can basically take the entire corpus of research papers on any topic and have the AI read all of it and provide an analysis cross referencing everything all at once. This applies to everyone and everything.

throw939499902 hours ago

Most mathematicians are quite simple creatures. I can do basic math, some derivations, but my bright days of solving differential equations are far gone!

Computers are simply better at math now, like in chess or go!

orphereus3 hours ago

C'mon AI companies, pivot to lawyers or doctors already.

Trying to convince us that mathematics and software engineering are "solved" is getting very tiring.

The pushback would probably be too much for the soon-to-be IPO-ed companies.

__natty__2 hours ago

They try to sell AI as lawyer or doctor replacements as well. But because it’s HackerNews we are biased towards our domains to see them more often.

dgellow2 hours ago

They can rely on compilers, solvers, theorem provers to validate the generated softwares and maths. That’s what makes it possible to iterate quickly in a loop and self correct. You cannot do that in soft industries like legal and medicine

orphereus2 hours ago

That is not the point I was making. I am not talking about validating software or maths. It can generate stuff that is valid, but bad and incomprehensible.

user9823 hours ago

Metacommentary: how did this post get to #5 on the front page with 1 upvote within 2 minutes of submission?

dgellow2 hours ago

That’s how HN works, I had that multiple times over the years with my own submissions. Sometimes it gets picked up quickly, sometimes not. A post can also down rank very, very fast. It depends a lot on the level of engagement and the type of engagement

grebc2 hours ago

Follow the money.

LoganDark3 hours ago

How fast the upvote happened?

tipsytoad3 hours ago

And the goalposts must move once again..

d--b3 hours ago

It is obvious that super intelligence comes from more working memory.

It is the scary thing actually. Cause once AI makes arguments that require a working memory of hundred items, then we as humans will have no way of understanding the arguments…

We can decompose and write things but only up to a point. when Ai can have a working memory that spans hundreds of books, we are necessarily going to have to trust the system.

flatline2 hours ago

This is why we have hierarchies of abstraction. Pretty much every field of mathematics relies on constructing notations, models, and other tools to simplify things in a way that is verifiable. LLMs rely on the same basic technique, they can just pull from a wide variety of these abstractions at once. So far we've been able to understand their proofs just fine. Computer-assisted proofs in the past that relied on brute-force is where we have run into trouble. We cannot reason about millions of possibilities at once, and we had to trust that the computer program that analyzed them was correct, which is a really hard problem and leaves humans fairly unsatisfied. I think we are actually progressing in terms of understandability in computerized proofs.

jacquesm3 hours ago

We offload working memory to paper if we want to understand something that does not fit into the regular meat bits.

tired-turtle2 hours ago

“is obvious” -- that’s what my Russian math professor said in college before skipping the rest of a proof.

But was it?

logicchains2 hours ago

>Cause once AI makes arguments that require a working memory of hundred items, then we as humans will have no way of understanding the arguments…

That doesn't follow. We could still understand it just by studying it and committing it all to long-term memory, it just takes longer. And there's a hard cap on the working memory of LLMs, due to the quadratic scaling cost of the full attention layers that have proved unescapable for all SOTA LLMs.

bewareofscams3 hours ago

"It's not X, it's Y" hot take AI slop.

seeknotfind2 hours ago

100%. Context is big for AI, but it's nothing compared to everything a human can learn. If you efficiently represent everything in context, it may be many papers, but if AI is actively working through proofs, it will quickly fill up. They're no denying AI is making strides, but pinning it to memory is an oversimplification.

mschuster913 hours ago

> But chunking does not eliminate the limit. It merely compresses the information.

Yeah, as expected, an article about AI that's at the very least been polished using AI. For fucks sake we need an LLM flag to filter out slop.

nick_pro73 hours ago

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