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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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    David Chapman‏ @Meaningness Feb 10
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    In decision theory, you have to choose something to maximize (“utility”). That is a meta-rational consideration, which is not taught, and for which there can be no rational procedure. So it’s usually done implicitly, and badly. https://www.johndcook.com/blog/2009/01/28/cost-benefit-analysis-versus-benefit-only-analysis/ …pic.twitter.com/dMA6z85fo7

    11:29 AM - 10 Feb 2020
    • 8 Retweets
    • 71 Likes
    • Kyle Eli Bushra Farooqui NLK Ed Phillips Jessica Taylor 🅱🅴🅽 Na Ro Turbo Rationalist
    5 replies 8 retweets 71 likes
      1. New conversation
      2. bucket of kets‏ @bucketofkets Feb 10
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        Replying to @Meaningness

        Are there behaviors that aren’t representable as the maximum of a utility function? My gut says that you can add enough epicycles to a utility function to get whatever you want, and that the real meta-rational consideration is that the utility function be “simple”

        3 replies 0 retweets 1 like
      3. David Chapman‏ @Meaningness Feb 10
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        Replying to @bucketofkets

        Simplicity trades off against other relevant considerations. See the discussion of multiple stakeholders in @JohnDCook’s OP e.g.

        0 replies 0 retweets 2 likes
      4. End of conversation
      1. Abel.TM‏ @Abel_TorresM Feb 10
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        Replying to @Meaningness

        Formulating *all* problems in terms of ‘utility maximization’ is like the original sin from which the rest of troubles arise

        0 replies 0 retweets 1 like
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      1. Basil Marte‏ @BasilMarte Feb 10
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        Replying to @Meaningness

        - Let's make a utility-maximizer. - That is too computationally intensive. Precompute the environment-to-best-action mapping, do clustering [!!!] on it, call the result deontology. - Hm, humans actually make most decisions via habits. Call habits virtuous/vicious, then.

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      1. Built2Think‏ @Built2T Feb 10
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        Replying to @Meaningness

        Agree completely. And real world problems make this worse because our intuitive sense of utility involves multiple ones that are simultaneously in play and dynamically changing in relative importance.

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      1. Jonathan Cast‏ @jonathanccast Feb 10
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        Replying to @Meaningness

        I think there are symmetry conditions which can be viewed as rational

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