13 votes

Mathematicians disprove conjecture made to save black holes

4 comments

  1. [3]
    adam
    Link
    Could anyone eli5 the idea of a Cauchy horizon, or perhaps the principles of 'space-like' or 'time-like'? This article doesn't mean that much without said understanding, and the wikipedia isn't...

    Could anyone eli5 the idea of a Cauchy horizon, or perhaps the principles of 'space-like' or 'time-like'? This article doesn't mean that much without said understanding, and the wikipedia isn't easy to learn from.

    2 votes
    1. [2]
      Natanael
      Link Parent
      Space-like: you can move in any direction, fack and forth. Time-like: you can only move in one direction. The event horizon is presumed to make space time-like in that you can only have paths...

      Space-like: you can move in any direction, fack and forth. Time-like: you can only move in one direction. The event horizon is presumed to make space time-like in that you can only have paths going in one direction, to the center. The center of the hole is your future.

      3 votes
      1. tumbzilla
        Link Parent
        I find the distinction between "Space-like" and "Time-like" really interesting. As a trained psychologist and AI researcher, I've always considered the fact that you can only move in one direction...

        I find the distinction between "Space-like" and "Time-like" really interesting. As a trained psychologist and AI researcher, I've always considered the fact that you can only move in one direction in time to be a limitation of our physiology. I strongly believe that time is like any other dimension. That said, I haven't had the chance to read up on the associated theory as much as I'd like.

        1 vote
  2. adam
    Link
    Oh! Fascinating. Thanks so much!

    Oh! Fascinating. Thanks so much!

    1 vote