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j2kun

HN member
Joined
Sun, Aug 05, 2012, 4:43 PM UTC
HN karma
8,074
Public activity
2,204 items

About j2kun

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

Recent public activity

  1. comment
    Comment #49246650

    You can make anything shallow by just not thinking about it. Conversely, the way things become deep is because we intellectualize them.

  2. comment
    Comment #49245087

    Indeed, I think Instagram may be all they have left, brand-wise.

  3. comment
    Comment #49232604

    What a dismal idea that a four-year-old device is non-functional and in need of "reviving."

  4. comment
    Comment #49200963

    FTA: > In late July, the Metro Council approved new zoning and related restrictions on data center development and implemented a moratorium on new permit approvals to run through D…

  5. comment
    Comment #49200487

    I recommend touching grass.

  6. comment
    Comment #49192260

    No, this is more like checks and balances: the state, the public, and corporations are kept in check when two of them join together to oppose the third.

  7. comment
    Comment #49192186

    What I think is nice is that the political parties opposed to data center development are actually taking concrete steps, exercising specific powers, to advance their goals. So muc…

  8. comment
    Comment #49013833

    I'm mostly replying to your "standing on the shoulders of giants" part, when in some cases, the giant is the work you did in the past and forgot about :)

  9. comment
    Comment #49010166

    FWIW, you may enjoy https://www.argmin.net/p/lore-laundering-machines

  10. comment
    Comment #49000833

    I was reading another source that claimed this example was inspired by an existing (rational polynomial) example from the literature (created in 1999 by a Russian mathematician Vit…

  11. comment
    Comment #48973343

    I think one counterpoint here is that you can still get value in using FHE in settings that don't involve scaling the number of users (e.g. B2B, public/private collab).

  12. comment
    Comment #48951656

    IMO a big unanswered question in FHE (which is my field so I care about the answer) is key management. If you have a service with lots of different users, and each user requires 10…

  13. comment
    Comment #48951560

    > gaining any sort of insight The server providing the FHE-based service does not gain any sort of insight. This is a key point: only the client can see the output of the computati…

  14. story
  15. comment
    Comment #48895094

    There is also Michael Lewis's book "Who Is Government?" if you want more meaningful stories.

  16. comment
    Comment #48895046

    People do this all the time https://www.reddit.com/r/dataisbeautiful/comments/1iu44ub/up... https://usafacts.org/government-spending/ https://sankeymatic.com/gallery/federal-budget…

  17. comment
    Comment #48866619

    Discovery is the entertainment for the rest of us.

  18. comment
    Comment #48865586

    FTA: > the number 12 features heavily in the Bible: Jacob’s 12 sons, the 12 tribes of Israel, the 12 apostles and the crown of 12 stars in the Book of Revelation are just a few exa…

  19. comment
    Comment #48861576

    Call me grumpy, but numerology does not make architecture more beautiful.

  20. comment
    Comment #48848673

    In my view, LinkedIn has never really been a place for serious discussion.

  21. comment
    Comment #48840819

    I heard someone say recently that one reason tech sucks is because the sociopathic narcissists domesticated the hackers.

  22. comment
    Comment #48789100

    I think I agree, the FAR bigger impact on my book's sales was Google search deciding not to surface it in search results. Presence on pirate websites had no effect, and eventually …

  23. comment
    Comment #48742182

    The main function of copybara is not moving code but modifying code to make it suitable for a different repository structure, build system, etc.

  24. comment
    Comment #48680202

    There are at least some technological solutions here, such as anonymous credentials. [1] Modern versions of this technique allow one to associate metadata (like a proof of age exce…

  25. comment
    Comment #48675823

    For our situation, building a foundation of trust in our community is more important than attracting as many contributors as possible. If a one-time face-to-face introduction is in…