8 comments

  • cxr 3 minutes ago
    [delayed]
  • MarkusWandel 17 minutes ago
    Did he though? TMK Shannon did specifically not give a way to deal with noisy channels, no. He invented a way to quantify what could be sent on a noisy channel if you figure out the optimal way to do it. This is very similar to "no matter what you figure out about faster travel, you can't go faster than light in a vacuum".

    Calculating the limit is easy with Shannon's theorem. Approaching it in practice is hard.

    • PunchyHamster 13 minutes ago
      > Calculating the limit is easy with Shannon's theorem. Approaching it in practice is hard.

      Many modern modulations already operate basically on Shannon's limit for a given band/SNR. Well, on raw data, the encoding almost always use some kind of error correction so the decoded bitrate is few % lower than the wire one

  • wood_spirit 1 hour ago
    Aha i saw this video in a comment on another HN thread this week: https://news.ycombinator.com/item?id=49791117 Avoiding the babbling-idiot failure in a time-triggered communication system
  • notarobot123 8 minutes ago
    [delayed]
  • dang 1 hour ago
    The full talk seems to be at https://au.cloud.panopto.eu/Panopto/Pages/Viewer.aspx?id=fe0..., but with a confusing interface (text chat flying by at speed, and no actual video of Alan, though you do get a prolonged view of a whiteboard). Maybe there's another copy that exists or will show up somewhere?
  • RobRivera 51 minutes ago
    Can someone please explain to me what this is all about?
  • shevy-java 32 minutes ago
    It would have been kind of great to see an OOP language with Alan's design, but with a better syntax. I dislike smalltalk syntax. Barely anyone uses smalltalk today.

    Even then, we'd also have an OOP language to be really really fast. Otherwise people will just use C.

    Java itself is too verbose and has a rather boring OOP model.

    • goatlover 25 minutes ago
      Crystal is a fast, compiled OOP language. It has static type inference with Ruby-style syntax. Ruby's OOP model took inspiration from Smalltalk.

      https://crystal-lang.org/