Some Notes on AI

This posting is mainly intended to provide some links to material about AI in math and physics that I’ve found interesting. I confess that to a large degree I’m trying to avoid seriously learning about exactly what is going on, so my own opinions and thoughts about this topic aren’t grounded in any expertise. If you have interesting things about this topic to point to in the comments, please do so, but for general discussion, try some other venue managed by someone better informed.

  • A Future of Mathematics event just started a few minutes ago at Stanford. You’ll find a link to the livestream there and talks should be on Youtube.
  • You can easily find people announcing that AI is about to make mathematicians obsolete. We’ll see. In the meantime what I’ve found interesting is that AI is motivating deeper thinking about what what it is that mathematicians really do, and how to protect the valuable parts of this. For good examples of this, see the substacks of Michael Harris and David Bessis. I especially like this recent posting. Also, it was from Michael Harris I learned that Peter Scholze has publicly expressed the opinion that

    I already consider the influence of AI to be strongly negative, for humanity, for democracy, and for the planet.

  • One of the main problems with AI agents in general is that they are better at saying things that are convincing than they are at saying things that are true. Their potential application in mathematics has the big advantage over other fields that one can use these agents together with formalization and proof-verification to deal with this problem. Scholze has been involved in a major effort using proof verification and I don’t think his remarks about AI apply to this. For a very interesting recent interview with him, see here, which includes some comments about why he hasn’t found formalization that useful.

    Something useful that may come out of this is a conclusive demonstration that there’s a gap in the Mochizuki abc proof. There’s a project working on formalizing this proof announced here. From what I can tell, the situation so far is that the very few who think Mochizuki has a proof have been unable to explain to anyone else how the proof is supposed to work at the point where Scholze/Stix pointed to a gap, and this includes the people charged with trying to formalize this part of the proof.

  • In fundamental theoretical physics, formalization is generally not relevant (except perhaps in some areas that could be described as mathematical physics). Given the fact that the subject has been stuck for a long time, with a lot of research devoted to ever-more irrelevant calculations, it seems clear that AI agents likely will soon be able to do this better than humans. For an example of what I mean, see here.

    There is a huge amount of money being thrown in this direction. As an example, the DOE is promoting a Genesis Mission. I’ve no idea how fruitful this will be for most of its goals, but the one relevant to fundamental theoretical physics is “Unifying Physics from Quarks to the Cosmos”. The idea is that

    An AI that internalizes the Standard Model could accelerate analysis by orders of magnitude, identify anomalies pointing to new physics, and propose theoretical extensions consistent with all data—a leap from pattern matching to physics reasoning.

    which doesn’t look at all promising.

    Jared Kaplan tells us here that in 2-3 years AI agents will be replacing the best of IAS theorists. Seems unlikely to me, but we’ll see soon…

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9 Responses to Some Notes on AI

  1. Mason Kamb says:

    Small note, the Kaplan in question is Jared (the co-founder of Anthropic), rather than either of the David Kaplan(s) who are still in the field.

  2. Ai physicist says:

    *Jared Kaplan, not one of the many Davids in particle physics.

  3. Bryan says:

    I recommend this interview with Terence Tao on the Dwarkesh podcast: https://www.dwarkesh.com/p/terence-tao

    He says that AI is already having a dramatic impact on mathematics, for example some immediate success with many of the unsolved Erdos problems, but to go further we will need to change the way we think about science:

    “It’s great that we can generate all kinds of things now with AI, but it means that the rest of the aspects of science have to catch up: verification, validation, and assessing what ideas actually move the subject forward and which ones are dead ends or red herrings. That’s not something we know how to do at scale. For each individual paper, we can have a debate among scientists and get to a consensus in a few years. But when we’re generating a thousand of these every day, this doesn’t work.”

    And

    “They excel at breadth, and humans excel at depth, human experts at least. I think they’re very complementary. But our current way of doing math and science is focused on depth because that’s where human expertise is, because humans can’t do breadth. We have to redesign the way we do science to take full advantage of this breadth capability that we now have.”

  4. Vance Harwood says:

    I very much agree with this: “One of the main problems with AI agents in general is that they are better at saying things that are convincing than they are at saying things that are true.” However, I have been using these tools extensively for relatively straightforward It\^o calculus topics for several years, and they have improved considerably. They are getting pretty good at representing the status quo on topics that are relatively well established.

    One potential upside, peer-review / validation of technical papers, appears to be a huge bottleneck right now–which AI is currently making worse, however, I think the better tools e.g, GPT 5.x and Claude are approaching the capability of providing a curation function at a first pass level. They could provide a score, perhaps similar to Sabine’s bullshit meter, that would enable people to focus on the most promising papers. This approach would naturally support some back and forth with the “reviewer” on a preprint server like SSRN or arXiv that would enable authors to comment on the automated review.

  5. Peter Woit says:

    Bryan,
    Tao has become somewhat the public face of the math research community on this issue. I haven’t read most of what he has been saying. One thing I did find interesting is his recent posts on mathstodon, see for instance:
    https://mathstodon.xyz/@tao/116450581967483825

    There he describes the problem-solving aspect of math research as generating a proof, verifying it, then trying to “digest” it, understand what new ideas are there that can be used elsewhere. AI is getting very good at the first two aspects, but what about the third (which is arguably the most important?).

    There’s an interesting contrast with what someone like Scholze is doing, which is not problem solving, but coming up with a new and more insightful framework. Proofs and verifications of theorems are of secondary importance, more as checks that you’ve found the right thing. Ideally, a la Grothendieck, if you have the right point of view, the proof of the theorem is obvious, you don’t need AI to verify it for you (see his metaphor about opening nuts).

  6. Peter Woit says:

    Harald,
    Yes, AI and the Erdos problems have gotten a lot of attention and I’ve seen some of it. This is though exactly the kind of thing that is going on where I’m the wrong person to discuss it, because:
    1. I know little about and am not interested in that kind of mathematics or in that kind of problem solving.
    2. When I look at the claims being made and the press coverage, I recognize something I’m very familiar with: a large component of hype. From experience I know very well that engaging with a heavily hyped area is a huge sink of time, since you need to become expert enough to figure out what is really going on. But, in this case, see point 1.

  7. Peter Woit says:

    At the “Future of Mathematics” event, a quite interesting talk by Terry Tao, just finished, you should be able to find it here
    https://www.youtube.com/watch?v=tN4hsT5t0nw
    He describes the problem now facing the math community as “proof indigestion”.

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