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Viewing profile — jcora

jcora

HN member
Joined
Mon, Nov 30, 2015, 4:30 PM UTC
HN karma
148
Public activity
94 items

About jcora

flowing.systems

Recent public activity

  1. comment
    Comment #28855568

    Of all mathematicians who would qualify as unsung, von Neumann is the last...

  2. comment
    Comment #28755864

    It seems like it is coupled in Facebook:)

  3. comment
    Comment #27360872

    Sounds snarky but completely correct. Parent should look for a more diverse set of examples for vector spaces. In fact sounds like a good linear algebra course would be a priority …

  4. comment
    Comment #25568248

    It's the other way around. State (and side effects) are explicit in pure programs, and implicit in impure programs.

  5. comment
    Comment #25476546

    No lol it's not possible to learn any math subject in depth in an afternoon, unless you mean "get a surface overview that you'll forget most things about in a couple of weeks". Pro…

  6. comment
    Comment #25385863

    Just learn haskell

  7. comment
    Comment #25385859

    Do note this won't teach you actual category theory (and shouldn't)

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  12. comment
    Comment #21894871

    No. You can write a compiler for any language in Scheme, but it's disingenuous to say that Scheme has that language's features. There are many languages with way more powerful feat…

  13. comment
    Comment #21843181

    This is not a practical language with dependent types tho lol

  14. comment
    Comment #21824267

    Can lisps place arbitrary code in types and formally verify complex properties of stateful systems--all in the same language? Doubt it. Lisp isn't the epitome of power.

  15. comment
    Comment #21789826

    Actually with dependent types you totally can encode proofs that your logic is correct. But I don't really see that trickling down into mainstream programming anytime soon.

  16. comment
    Comment #21711349

    This is a completely meaningless comparison. Even things that behave waaay more similar than cocaine and coffee in terms of brain chemistry can have even more disparate effects. An…

  17. comment
    Comment #21711339

    I'll let you figure out the difference between 'exceptional and prolific writer' and for example 'stressed out social/office worker who others depend on':)

  18. comment
    Comment #21691589

    Yeah absolutely not. You can certainly drink and work, just as it's possible to drive drunk without killing someone. These isolated cases without incident don't really matter in th…

  19. comment
    Comment #21647307

    Is moldbug your mayor/ceo?

  20. comment
    Comment #21644876

    He's being sarcastic. "but I truly believe the internet is going to change the way we do business."

  21. comment
    Comment #21620519

    What kind of people? Just gullible or something more specific?

  22. comment
    Comment #21583903

    I don't see how you could actually come up with new stuff in PLT without a very heavy math background, specifically in logic. I mean it's not impossible just extremely unlikely.

  23. comment
    Comment #21557231

    I don't know man. I feel like there are places I know more than Rob Pike almost certainly. Like, I don't know, most of functional programming. I seriously doubt he knows what index…

  24. comment
    Comment #21549422

    > One big problem with the plan, which a lot of people don't realize, is that your typical university math degree isn't that much more challenging than doing well in high school ma…

  25. comment
    Comment #21325806

    I use almost no lambdas in my functional code. I don't understand why they're thought to be paragons of FP in non-pure language communities. Maybe because there are no operator sec…