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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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    Casey Muratori‏ @cmuratori 14 Apr 2020

    Casey Muratori Retweeted Stephen Wolfram

    So, I read this entire post, but the entire thing just sums up to "we think someday we could make a context-free grammar for the universe". Since they _haven't_ yet, I'm not sure what the proposed value-add is here?https://twitter.com/stephen_wolfram/status/1250063808309198849 …

    Casey Muratori added,

    Stephen WolframVerified account @stephen_wolfram
    I never expected this: finally we may have a path to the fundamental theory of physics...and it's beautiful https://writings.stephenwolfram.com/2020/04/finally-we-may-have-a-path-to-the-fundamental-theory-of-physics-and-its-beautiful/ … pic.twitter.com/IVvx8F97SQ
    10:37 AM - 14 Apr 2020
    • 8 Retweets
    • 48 Likes
    • Jegor Gołowin Pavel Bažant Tyler Willis ≡ Zylatis Adam B Gleb Posobin in NYC, let's meet! Zerker Rhys Lindmark (🐘, 🐘) DonChambi
    9 replies 8 retweets 48 likes
      1. Casey Muratori‏ @cmuratori 14 Apr 2020

        Like there are literally stacks of papers in the computer graphics literature that have precisely these kinds of algorithms their proposing here. We've done this, done this, done this, and done it again over and over. What is the actual contribution supposed to be here?

        5 replies 0 retweets 14 likes
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      2. gingerBill‏ @TheGingerBill 14 Apr 2020
        Replying to @cmuratori

        I've read it too and it appears to be mostly hot air. It is mostly a proto-hypothesis based on the ideas of Wolfram's causal graph research without it having much truth to it. He just wants a Theory of Everything to be automata described by logical rules w/ context-free grammar.

        1 reply 0 retweets 2 likes
      3. gingerBill‏ @TheGingerBill 14 Apr 2020
        Replying to @TheGingerBill @cmuratori

        He does give analogies of what difference components could be, such as time, space, energy, momentum, but it doesn't seem to be _the_ things themselves. He does just admit that he hasn't got the rules yet and his proto-hypothesis heavily relies upon it.

        0 replies 0 retweets 0 likes
      4. End of conversation
      1. Anno0770‏ @Anno0770 14 Apr 2020
        Replying to @cmuratori

        It's neat and it might pose some interesting restrictions on the space of solutions in other theories?

        0 replies 0 retweets 0 likes
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      2. Matthew Frye‏ @_Purble 14 Apr 2020
        Replying to @cmuratori @quaplek

        Obligatory xkcd: https://xkcd.com/171/  Like, the maths looks neat, but there's a lot of neat maths. I don't really see why I should believe this has a greater connection to physics than Conway's Game of Life has to real life.

        1 reply 0 retweets 2 likes
      3. Alex Hunsley‏ @quaplek 14 Apr 2020
        Replying to @_Purble @cmuratori

        Yeah exactly. Speaking of which, you reminded me of this William Poundstone book: https://www.amazon.co.uk/Recursive-Universe-Complexity-Scientific-Knowledge/dp/048649098X … No grand claims about fundamentals of the universe, but an enjoyable foray in Game of Life, Turing machines, physics, FWIROI.

        0 replies 0 retweets 0 likes
      4. End of conversation
      1. Marcos‏ @marcos_don 14 Apr 2020
        Replying to @cmuratori

        It sounds like PuzzleScript for universes.

        0 replies 0 retweets 2 likes
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      2. Tyler Glaiel‏Verified account @TylerGlaiel 14 Apr 2020
        Replying to @cmuratori

        so let me get this straight. he's claiming that all the properties of the universe are an emergent result of applying some kind of small rule on graphs over and over again, on the order of 10^500 times.

        1 reply 0 retweets 0 likes
      3. Tyler Glaiel‏Verified account @TylerGlaiel 14 Apr 2020
        Replying to @TylerGlaiel @cmuratori

        and proves this by comparing it to what happens on scales of ~10^1

        0 replies 0 retweets 0 likes
      4. End of conversation
      1. New conversation
      2. Andrew J. Bromage‏ @deguerre 14 Apr 2020
        Replying to @cmuratori

        Wolfram's syllogism: Automata make complicated things. Physics is a complicated thing. Therefore automata make physics.

        1 reply 3 retweets 8 likes
      3. Andrew J. Bromage‏ @deguerre 14 Apr 2020
        Replying to @deguerre @cmuratori

        To be a little more fair, Wolfram's actual contribution here is that some automata have rules that preserve invariants, akin to conservation laws/invariants in physics.

        1 reply 0 retweets 4 likes
      4. Show replies

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