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cmuratori's profile
Casey Muratori
Casey Muratori
Casey Muratori
@cmuratori

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Casey Muratori

@cmuratori

I'm worried that the baby thinks people can't change.

Seattle
caseymuratori.com
Joined March 2009

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    1. Casey Muratori‏ @cmuratori 18 Jul 2013

      Argh! An infinite map only contains all possible maps if it is provably non-repeating. Back to math class with you: http://www.rockpapershotgun.com/2013/07/15/some-time-with-cube-world/#more-160466 …

      2 replies 0 retweets 0 likes
    2. (BLM) Sean Barrett‏ @nothings 18 Jul 2013
      Replying to @cmuratori

      @cmuratori Even if non-repeating it need not contain all possible maps. Analogy: easy to construct irrational number with no digit '7'.

      1 reply 0 retweets 0 likes
    3. Casey Muratori‏ @cmuratori 18 Jul 2013
      Replying to @nothings

      @nothings True - and also, wouldn't anything with infinitesimal probability occur a different number of times in each generated universe?

      3 replies 0 retweets 0 likes
    4. (BLM) Sean Barrett‏ @nothings 18 Jul 2013
      Replying to @cmuratori

      @cmuratori But that's just random speech to begin with. You have to assume a distribution in the infinite universe to talk probabilities.

      1 reply 0 retweets 0 likes
      Casey Muratori‏ @cmuratori 18 Jul 2013
      Replying to @nothings

      @nothings But the article in particular is talking about the map generator for a game. So, it _does_ have probabilities, etc.

      2:40 AM - 18 Jul 2013
      4 replies 0 retweets 0 likes
        1. (BLM) Sean Barrett‏ @nothings 18 Jul 2013
          Replying to @cmuratori

          @cmuratori Things that the algorithm can't produce will never be produced. Things generated by testing random numbers will have finite probs

          0 replies 0 retweets 0 likes
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        2. (BLM) Sean Barrett‏ @nothings 18 Jul 2013
          Replying to @cmuratori

          @cmuratori Only way to get finite# of things from map gen is due to pseudo random number gen never repeating, which is unlikely scenario.

          1 reply 0 retweets 0 likes
        3. Casey Muratori‏ @cmuratori 18 Jul 2013
          Replying to @nothings

          @nothings Clearly we just need chipsets to provide a good source of infinitesimal probability. That's the real problem here.

          0 replies 0 retweets 0 likes
        4. End of conversation
        1. (BLM) Sean Barrett‏ @nothings 18 Jul 2013
          Replying to @cmuratori

          @cmuratori E.g. if you do some kind of hashing function on x&y with finite bit length, that'll repeat when x&y wrap that length.

          0 replies 0 retweets 0 likes
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        1. (BLM) Sean Barrett‏ @nothings 18 Jul 2013
          Replying to @cmuratori

          @cmuratori If you write a bignum random generator, then it would depend on whether that random generator does produce finite seqs infinitely

          0 replies 0 retweets 0 likes
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