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Meaningness's profile
David Chapman
David Chapman
David Chapman
@Meaningness

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David Chapman

@Meaningness

Better ways of thinking, feeling, and acting—around problems of meaning and meaninglessness; self and society; ethics, purpose, and value.

meaningness.com/about-my-sites
Joined September 2010

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    1. David Chapman‏ @Meaningness 18 Jul 2017
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      Why Bayesianism is unworkable: it assumes a fixed hypothesis space. Explanation by @nostalgebraist h/t @garybasin http://nostalgebraist.tumblr.com/post/161645122124/bayes-a-kinda-sorta-masterpost …pic.twitter.com/3z4gDxj4Lv

      9 replies 17 retweets 50 likes
    2. David Chapman‏ @Meaningness 18 Jul 2017
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      Replying to @Meaningness

      All formal methods share this limitation, but Bayesianism is the E. coli of rationalism: so simple that it makes the failure mode obvious.

      1 reply 1 retweet 8 likes
    3. Jonathan Fischoff‏ @jfischoff 18 Jul 2017
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      Replying to @Meaningness

      Is this more an issue with how bayesian problems are solved, e.g. focus on the likelihood? Model comparison req the full normalized prob?

      1 reply 0 retweets 0 likes
    4. David Chapman‏ @Meaningness 18 Jul 2017
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      Replying to @jfischoff

      The issue is logically prior to that: what possible hypotheses do you consider?

      2 replies 0 retweets 0 likes
    5. Srijit Sanyal‏ @_Srijit 18 Jul 2017
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      Replying to @Meaningness @jfischoff

      "what possible hypotheses do you consider" according to MIRI, all of them, incrementally

      1 reply 0 retweets 0 likes
      David Chapman‏ @Meaningness 18 Jul 2017
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      Replying to @_Srijit @jfischoff

      The MIRI thing only operates in the space of math, not hypotheses about the physical world.

      10:50 PM - 18 Jul 2017
      4 replies 0 retweets 0 likes
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        2. Srijit Sanyal‏ @_Srijit 18 Jul 2017
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          Replying to @Meaningness @jfischoff

          yes so their machine would combine tractable induction over logical sentences with tractable induction over empirical sentences.

          1 reply 0 retweets 0 likes
        3. David Chapman‏ @Meaningness 18 Jul 2017
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          Replying to @_Srijit @jfischoff

          It is utterly not tractable. The combinatorics are ultra super fantastically waaaaay more than exponential.

          1 reply 0 retweets 1 like
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        1. Srijit Sanyal‏ @_Srijit 18 Jul 2017
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          Replying to @Meaningness @jfischoff

          to me, the issue is that universal search over every sentence, even if tractable, is by definition slower than true *intelligent* reasoning.

          0 replies 0 retweets 0 likes
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        1. Srijit Sanyal‏ @_Srijit 18 Jul 2017
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          Replying to @Meaningness @jfischoff

          I find it amazing though that Yudkowsky by his own admission never even read Quine or Carnap

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        1. Srijit Sanyal‏ @_Srijit 18 Jul 2017
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          Replying to @Meaningness @jfischoff

          also these inductive algorithms aren't strictly Bayesian, so lack some of the ideal properties

          0 replies 0 retweets 0 likes
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