Live data from Hacker News

Viewing profile — lifthrasiir

lifthrasiir

HN member
Joined
Sat, Feb 20, 2010, 11:09 AM UTC
HN karma
14,208
Public activity
4,116 items

About lifthrasiir

Kang Seonghoon aka lifthrasiir and many other nicknames. (Twitter @senokay, Bluesky @mearie.org, Github @lifthrasiir, https://mearie.org/) Views my own, I'm not a laywer (nor any other occupation that might require professional qualifications), your mileage may vary, yadda yadda yadda.

Brief bio: Born in South Korea. Was a wannabe programming language researcher until I realized I'm not fit for the academia. Went to several startups with various duties. Then became a gamedev---primarily server frameworks and infrastructure but did many others too---in a big company for nearly a decade until I finally burnt out. Then worked for an ML accelerator startup doing tons of systems programming. Still doing strange things over the course: one winning IOCCC entry, a full-fledged type checker for Lua, several influential Rust libraries including Chrono, compression stuffs like Roadroller and J40 etc. Known for needlessly big walls of text.

[ my public key: https://keybase.io/lifthrasiir; my proof: https://keybase.io/lifthrasiir/sigs/dGcjGsucdiIiTpeVc7WH5YfQNZnkypj-azYwkMJH60Y ]

Recent public activity

  1. comment
    Comment #49095208

    I'm on a mobile right now so I can't give the exact paper link but you can learn about the CORE-MATH project [1]. [1] https://core-math.gitlabpages.inria.fr/

  2. comment
    Comment #49094065

    The dilemma is hypothetical (because we now know the exact precision requirement for those functions over all 64-bit doubles) but let's assume that we don't know that and also we h…

  3. comment
    Comment #49056669

    Common sense testing only tells about the presence of common sense, that's it. It is clear from recent events that LLMs do definitely possess some sort of intelligence even though …

  4. comment
    Comment #49056113

    It is a project-wide concern, so the stake is obviously high.

  5. comment
    Comment #49055851

    They learned English or gave up.

  6. comment
    Comment #49055783

    All of which have been challenged though. As the stake is high, any such reason (for or against LLMs, to be fair) has to be backed with Wikipedia-level evidences at the very least.…

  7. comment
    Comment #49033523

    The OP said the Mandela effect [1] which is definitely about the past event. Anyhow, I'm okay with Codeberg's decision (I'm not even its stakeholder, so what can I say about that a…

  8. comment
    Comment #49033296

    Many influential F/OSS projects started with a small number of users (and contributors), and will continue to do so for the foreseeable future. Codeberg effectively says that it on…

  9. comment
    Comment #49033212

    Do yourself a favor and look at the actual HN thread [1] when Codeberg was widely discussed for the first time. It is crystal clear that Codeberg was seen as a direct alternative t…

  10. comment
    Comment #49019771

    I think an even better advice is that everyone should know array programming, because you generally need that mindset for SIMD optimizations as (packed) SIMD-specific techniques ar…

  11. comment
    Comment #49017779

    In the other words, free() is a flawed API. :-)

  12. comment
    Comment #49016002

    This follows what SourceHut did in 2022 [1], but I think SourceHut did much better job to announce that (as of this writing). [1] https://sourcehut.org/blog/2022-10-31-tos-update-c…

  13. comment
    Comment #49015963

    Apparently in early this month.

  14. comment
    Comment #48991179

    > In the three examples below, the model accurately renders Japanese, Korean, and Spanish respectively. And yet the Korean text is not accurate... [1] [1] E.g. "드레스 컬렉션 dress colle…

  15. comment
    Comment #48966422

    I used to make a hybrid bitmap-vector font called Unison [1] a decade ago and I made it in that way so that I don't have to learn the fine art of (vector) typography. Or at least t…

  16. comment
    Comment #48954644

    Probably, but knowing that redirection operators can be freely moved within normal arguments [EDIT: thank ButlerianJihad for pursuing me to make this more accurate] is useful.

  17. comment
    Comment #48954555

    Don't do this: cat file | wc -l => wc -l head -n 5 file cat file | awk '{print $1}' => awk '{print $1}' file cat file | sort => sort file Do this instead: cat file | wc -l => The f…

  18. comment
    Comment #48942184

    How does it compare with utf8proc [1]? I'm aware that Mojibake does a bit more than utf8proc (e.g. bi-di) but that seems marginal to me. [1] https://juliastrings.github.io/utf8proc…

  19. comment
    Comment #48928817

    Context: 码 means "code" in Chinese and prominently appears in words like, e.g. 源代码 (source code).

  20. comment
    Comment #48927423

    > exfiltrating user data (including env files, entire source code etc) which is what grok-build did here I think env files are filtered out [1]. Anyway, the most suspicious code wo…

  21. comment
    Comment #48927212

    Is this the infamous "cloud upload" routine? I'm not sure it is indeed insidious, though it is of course possible that the code has been filtered out. https://github.com/xai-org/gr…

  22. comment
    Comment #48919927

    Sharing those things to coding agents and model providers is probably inevitable for the use. The memory with random tidbits is not.

  23. comment
    Comment #48917348

    I think it is already done via a subagent, otherwise the context window would be flooded with long responses. In this case the subagent should've reported that a (attacker-controll…

  24. comment
    Comment #48917293

    That's why I don't turn memory on. (Claude Code too though for a different reason.) After all the current memory system is too crude to be useful anyway.

  25. comment
    Comment #48887063

    You are right. (Ziv's rounding is essentially a method that keeps error bounds and increases the precision on the inconclusive result.) I think atan2 suffers from the same problem …