Andrew Leber

A man of many interests, some very deeply

Working on a new approach to treating cancer @marrow_bio

[Andrew Leber @andrew_leber]

@Corruptario4eva Sounds like this account is just some sort of release, I'll leave you to it :)

[Andrew Leber @andrew_leber]

@Corruptario4eva Why in the world would they pick me? Did you see the NYC in the bio?

I'm just curious who you think would make a better pick, whether name or profile.

You could have also just been critiquing the picks without necessarily providing alternatives, also a fair answer

[Andrew Leber @andrew_leber]

@Corruptario4eva Curious about some names/ you think should be on it

[Andrew Leber @andrew_leber]

@MaryJackalope 🚣‍♂️

[Andrew Leber @andrew_leber]

@EquityCats No...they got you too

[Andrew Leber @andrew_leber]

@blogTO Guy who just visited Amsterdam:

[Andrew Leber @andrew_leber]

@arram @gwern https://t.co/fRgNSnhm5M

[Superman @thesupermannx]

Researchers built an AI that doxes any "anonymous" reddit account in under a minutes for $2.

eth zurich and anthropic published a terrifying paper proving that "practical anonymity" on the internet is officially dead.

they built a fully autonomous ai pipeline that takes your pseudonymous posts, extracts your identity signals, searches the web, and figures out exactly who you are. no human investigator needed.

the numbers are actually mindblowing..

- 67% of hacker news users identified correctly
- when the system makes a guess, it is right 90% of the time
- it even unmasked scientists whose interview transcripts were explicitly redacted for privacy

the scariest part? even time doesn't protect you.. they tested users who took a full year break and changed their interests. the ai still matched their old and new profiles with 90% precision. it sees through your persona changes like they aren't even there.

there is no defense against this. the agent splits the work into tiny, benign tasks like "summarizing a profile" or "ranking candidates." no api safety guardrail is going to flag it because no single step looks malicious..

every throwaway account. every "nobody will connect this to me" comment. it’s all just searchable micro-data now.

[Andrew Leber @andrew_leber]

@akilian Congrats

[Andrew Leber @andrew_leber]

@typesfast @brandonhli They did cut headcount, from 5 accountants to 1

[Andrew Leber @andrew_leber]

@charliie I tried to sponsor a path but it didn't seem to work? DMing you

[Andrew Leber @andrew_leber]

@TheZvi @LaurencePostrv What if Model 2 is the model class? Then the next one would be Model 2-2, followed by Model 2-2.1

[Andrew Leber @andrew_leber]

@depressed19732 Chessboxing coach?

[Andrew Leber @andrew_leber]

@amacker What awaits you next?

[Andrew Leber @andrew_leber]

@CacheThatCheque "If a young Warren Buffett lived in Japan, he'd be just like me! We'd buy all the same stocks and share the same favorite restaurant"

[Andrew Leber @andrew_leber]

@VminVsky You pre-saw it here first, folks: Preseen's precise predictions and unprecedented premonitions predicated on precise present proceedings will appreciate precipitously. In other words, congrats brother!

[Andrew Leber @andrew_leber]

@TheStalwart Nobel Memorial Prize*

[Andrew Leber @andrew_leber]

@Jlindig0 Congrats!

[Andrew Leber @andrew_leber]

StraussGPT

[Antonio Norelli @noranta4]

LLMs can hide a text in another text of the same length.

I'll explain how, it is very simple, you'll understand before I finish, and smile.
That's what I noticed during my #ICLR2026 poster session in Rio! 🇧🇷
Too bad you missed it, but let me remedy now

[Andrew Leber @andrew_leber]

@afikanyati Fair enough! And for results that hold, there usually are multiple methods. But I dispute that entropy in the math universe remains the same.