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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 19 Sep 2019
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      Replying to @michael_nielsen @andy_matuschak

      I think he was referring to philosophical systems—Schopenhauer, Hegel. The impulse if you’ve got one is to fit everything into its structure, even if that means whacking square pegs into round holes and falsifying phenomena in an attempt at explaining everything

      1 reply 0 retweets 1 like
    2. michael_nielsen‏ @michael_nielsen 19 Sep 2019
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      Replying to @Meaningness @andy_matuschak

      Interesting. I think of this as a very productive impulse in science! Eg you learn about gravity on earth and nearby... then use that explanation to try to explain everything everywhere with it (galaxy rotation curves! the Big Bang! etc). Very revealing.

      2 replies 0 retweets 1 like
    3. David Chapman‏ @Meaningness 19 Sep 2019
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      Replying to @michael_nielsen @andy_matuschak

      Yes... ish... I think maybe it works better in fundamental physics than elsewhere. Most other sciences are masses of small overlapping theories without big general principles

      1 reply 0 retweets 1 like
    4. michael_nielsen‏ @michael_nielsen 19 Sep 2019
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      Replying to @Meaningness @andy_matuschak

      Ah, I should have said what I meant more clearly: both Newtonian gravity & general relativity break badly in those situations. That's why they're so revealing. Ditto black holes.

      2 replies 0 retweets 0 likes
    5. David Chapman‏ @Meaningness 19 Sep 2019
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      Replying to @michael_nielsen @andy_matuschak

      Oh I see!

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    6. mrgunn‏ @mrgunn 19 Sep 2019
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      Replying to @Meaningness @michael_nielsen @andy_matuschak

      There are some thing in biomed that fit the bill, too. Learning about the genetic basis if inheritance and trying to apply that to everything, or for a more contemporary example, Fristonian free energy.

      1 reply 0 retweets 0 likes
    7. David Chapman‏ @Meaningness 20 Sep 2019
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      Replying to @mrgunn @michael_nielsen @andy_matuschak

      Definitely genetics/evolution. What I’ve read about Friston seems like forcing a few facts to fit a theory and ignoring anything that doesn’t… is there a source you would recommend that I might find more persuasive?

      1 reply 0 retweets 0 likes
    8. mrgunn‏ @mrgunn 20 Sep 2019
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      Replying to @Meaningness @michael_nielsen @andy_matuschak

      @slatestarcodex has written about it a bunch and I think it definitely fits as a "unified theory that people try to apply to everything" Overview: https://slatestarcodex.com/2018/03/04/god-help-us-lets-try-to-understand-friston-on-free-energy/ … Psychedelics (trigger warning, Bayesianism): https://slatestarcodex.com/2019/09/10/ssc-journal-club-relaxed-beliefs-under-psychedelics-and-the-anarchic-brain/ … Depression: https://slatestarcodex.com/2017/09/12/toward-a-predictive-theory-of-depression/ …

      1 reply 0 retweets 0 likes
    9. David Chapman‏ @Meaningness 20 Sep 2019
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      Replying to @mrgunn @michael_nielsen and

      Thanks, yes, I mostly only know it from the @slatestarcodex write-ups. It appears to be Kalman filters, and when that doesn’t fit, epicycles of Kalman filters on Kalman filters. Kalman filters are an instance if what I call “rationalist pit-traps”...

      1 reply 0 retweets 1 like
    10. David Chapman‏ @Meaningness 20 Sep 2019
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      Replying to @Meaningness @mrgunn and

      Discussion here: https://twitter.com/search?l=&q=kalman%20from%3Ameaningness&src=typd …

      2 replies 0 retweets 0 likes
      David Chapman‏ @Meaningness 20 Sep 2019
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      Replying to @Meaningness @mrgunn and

      David Chapman Retweeted David Chapman

      With this thread for context:https://twitter.com/Meaningness/status/1083805073950400514?s=20 …

      David Chapman added,

      David Chapman @Meaningness
      Pit-traps for rationalists: the seductive appeal of seemingly-universal frameworks that hardly ever work in practice. You can waste your entire career on one. You can waste an entire academic discipline and billions of dollars of research funding on one. https://www.ribbonfarm.com/2019/01/10/remembering-pierre-kabamba/ … pic.twitter.com/GDMTGUSyTg
      Show this thread
      10:51 AM - 20 Sep 2019
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      • Andy Matuschak mrgunn
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