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j2kun

8,294 karma · joined August 5, 2012

Author of Math ∩ Programming: https://jeremykun.com Author of A Programmer's Introduction to Mathematics: https://pimbook.org Working on https://pmfpbook.org

Working on Fully Homomorphic Encryption at Google (see https://heir.dev)

Come say hi at j2kun@mathstodon.xyz

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j2kun··on Why is this fingerprinting script creating bioweapons?
I think you missed the point of the article. It is using that phrase as a trigger to stop LLMs from analyzing it.
j2kun··on We should be more ambitious with the software we build
Ambition describes the big things you intend to accomplish. By my definition, this is the opposite of solving a lot of small inconveniences. If all you intend to accomplish is to optimize your personal microbenchmarks, then you're primarily navel gazing.
j2kun··on We should be more ambitious with the software we build
Holy non-sequitur...
j2kun··on We should be more ambitious with the software we build
I get what the author is saying, but his examples like "a ripgrep fork that ... is faster for my codex ripgrep workloads" don't strike me as particularly ambitious.

Perhaps we should be more ambitious in the types of problems we try to solve, and the types of value we try to provide with the software we build.

j2kun··on The recently proposed o(n log n) integer multiplication algorithm [pdf]
Gell-Mann amnesia doesn't really apply to the world expert on a topic discussing a paper that builds on his own work. It might apply to a world expert on a topic discussing a topic on which he is not an expert.
j2kun··on There's never been a better time to go into math (by: 3blue1brown) [video]
I think it depends on what you mean by crowded. I think the most common profession for a math major is teaching, is it not?
j2kun··on Will it be a golden age or a dark age for mathematics (and science)?
--sent from emacs
j2kun··on Will it be a golden age or a dark age for mathematics (and science)?
Coding boot camps were notorious examples of failures and grifts. They did not produce meaningful quantities of software engineers.
j2kun··on Will it be a golden age or a dark age for mathematics (and science)?
TIL Greek is no longer "in circulation." I guess you would also be opposed to people doing math in Russian or Japanese?
j2kun··on Will it be a golden age or a dark age for mathematics (and science)?
Was? Grad school applications are once a year and this happened just a few weeks ago
j2kun··on Claude reveals ECDSA curve origins
If it was insecure and they found it first, that'd be better than many alternative actors who would eventually find the same exploit.
j2kun··on Why We're Banning AI
You're focusing too much on semantic nitpicking and less on the part where people "wield it as a tool to fuck over artists."

Nobody cares if hobbyists make a "Star Wars but make it Monet" art piece with AI and put it on their wall. It's the part where bosses fire John Smith and then ask the LLM, "please write 100 articles in the style of John Smith." It's the part where an actor is hired once, their face scanned, and then their likeness is used (unpaid) in a hundred films.

j2kun··on Why We're Banning AI
> the companies that survived did not do so by embracing quality journalism and independent reporting

Out of curiosity, which companies embraced quality journalism and failed because of it?

j2kun··on Why We're Banning AI
> I’ll admit, I used to be excited by generative AI. I made goofy little images in DALL-E. I liked the dumb novelty songs. I thought it could be a cool tool for creative professionals to play around with. I forgot for a moment that we live under capitalism, where every new technology will be used by the ruling class to fuck over workers.

I think this is key. If AI wasn't force-fed into every industry in a rapacious grasp for more profits, our society might have been able to grow into a healthier equilibrium where AI is a useful tool for creative professionals.

Even the insiders I talk to at big AI labs express the opinion, "nobody likes where we're going, but the pressures are too strong."

j2kun··on I know why the mathematicians weep
Ok, so if you really believe that losing one's vocation at 25 is the same as a 75 year old losing their spouse, that paper suggests you should wait at least 6 months before you start being a jerk about it.
j2kun··on I know why the mathematicians weep
I think your expectations of who gets to do math is uncalibrated. One famous math researcher who solved a major open problem was working at Subway while still doing math on the side.

A very small fraction of people who get math degrees actually continue to do math in their careers. They usually have to get other jobs in order to survive (actuary, teacher, finance, etc.). Academic math funding was already drying up for last few years, and now AI will probably cause more cuts. Not to mention that academic math positions have never paid particularly well.

I feel bad for anyone who can't find a job, but the software industry as a whole has been the cushiest industry for decades, and the current turbulence seems more temporary (and driven by corporate greed) than a systematic destruction of the trade.

j2kun··on I know why the mathematicians weep
> I know more math now than in any point in my life because I want to understand how LLMs work

The implication here is that you wasted your time learning that math, and the fact you learned that will not actually help you contribute to anything.

Now maybe you are closer to understanding the feelings expressed in the article?

j2kun··on I know why the mathematicians weep
My friend, this happened a week ago. If a spouse dies you don't come back a week later and say "welp, chin up and diversify your dating pool!"
j2kun··on I know why the mathematicians weep
The idea that a junior software engineer who can't get a software job _and also can't get any other kind of job or move somewhere cheaper to live_ to the point that they can't afford to feed their families is what's unrealistic.

It's not like the options are write software or starve. Billions of people find jobs and can feed their families without writing software.

I also don't often meet junior software engineers who actually have families to feed. Most juniors work in the industry for a few years before deciding to get married and have kids.

j2kun··on Character.ai's Bankruptcy Documents Show the Economics of AI Don't Work
That seems even less nuanced: bad economics AND they had a potentially illegal product.

Perhaps it's more that "consumer startups that want to become a unicorn" are hard.

j2kun··on 500B tokens later: Letting AI agents decompile a first-person shooter
I'm going to start using that term :)
j2kun··on Why aren't AI companies being charged for hacking?
Tort law does not. This seems like a case of dangerous instrumentality.
j2kun··on The gap in shared understanding of LLM capability is widening
Unfortunately, marketing, hype, and venture capital overshadows any serious public discussion of capabilities.
j2kun··on 500B Tokens Later: Letting AI Agents Decompile a First-Person Shooter
That may be true, but I hate it when people repeat the false idea that functional equivalence requires only a test suite that has full branch/line coverage. Call me triggered :)

That said, I would probably follow this same approach if I were to do this, but with extensive randomized testing as well.

j2kun··on 500B tokens later: Letting AI agents decompile a first-person shooter
I struggle to believe that someone would find it worth that much money to have a decompiled version of a game they also commit to keeping private.
j2kun··on 500B tokens later: Letting AI agents decompile a first-person shooter
Functional equivalence here, of course, depends on the completeness of the test suite, where byte-identical compiled artifacts does not.

(For example, your approach would not necessarily catch all the same overflow behaviors; the OP expressly claimed that "replicating all bugs" was also important, and many bugs are caused by certain overflow behaviors)

j2kun··on Vibe coded browser ports of Halo, The Simpsons: Hit And Run, GTA work well
I imagine this would go far, but also note that the variety of compilers used over the last 30 years of game dev would make this not so obviously generalizable.
j2kun··on OpenAI, the Partition Principle, and Mathematics
> specific choices of notation are identical to a preliminary version of the present paper

I don't see how it's related to quality at that point. Call your technique "the banana method" and wait to see OpenAI invent "the banana method"

j2kun··on Vitalik Buterin backs crypto ‘bunker mode’ amid rapid AI math advances
And if the same AI has tried and failed to break lattice problem security, wouldn't that suggest the problems are more secure, not less?
j2kun··on The Future of Mathematics
I stand corrected!
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