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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 11 Jan 2019
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    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

    11:17 AM - 11 Jan 2019
    • 37 Retweets
    • 145 Likes
    • Psi Operator Surfnm eigenrobot Vaitkus Márton Mi'sen Brian Zindler yeetus_ admzmf Taylor Rogalski
    9 replies 37 retweets 145 likes
      1. New conversation
      2. David Chapman‏ @Meaningness 11 Jan 2019
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        Black holes in idea-space: singularities at the bottom of gravitational wells that suck in any vaguely similar concept. Cox’s Theorem, e.g.: once you begin to characterize uncertainty in terms of real numbers, inevitably you fall into probability. https://meaningness.com/probability-and-logic …pic.twitter.com/ORnXfsYA8o

        1 reply 6 retweets 24 likes
        Show this thread
      3. David Chapman‏ @Meaningness 11 Jan 2019
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        If you start to “represent knowledge,” you inevitably fall into predicate calculus, a supermassive galactic attractor. In which case “reasoning” is logical deduction. Which… almost never works. Probability theory sometimes works, but *most* uncertainty doesn’t work like that.pic.twitter.com/BdYnZeL4ad

        3 replies 6 retweets 25 likes
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      4. David Chapman‏ @Meaningness 11 Jan 2019
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        Project: a list of rationalist pit-traps, with a brief explanation the circumstances in which each works in practice. • Decision theory • Function approximation • Objective-function maximization • State-space search • Kalman filters • … add your favorite here?

        7 replies 5 retweets 46 likes
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      5. David Chapman‏ @Meaningness 11 Jan 2019
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        Some AI people got sucked into Kalman filters back in the 80s. You can see *anything* as a Kalman filter, somehow! “You’ve reinvented Kalman filters!” they said about my thesis, despite there being no continuous quantities in either the system’s domain or the AI agent.

        2 replies 2 retweets 11 likes
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      6. David Chapman‏ @Meaningness 11 Jan 2019
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        A rationalist pit-trap has a formal domain of applicability, though it mostly doesn’t work well even there. If you fall into the pit, you apply your pet framework well outside its formal domain, by wishful thinking & metaphor. Hallucinating Kalman filters in discrete systems.

        2 replies 2 retweets 9 likes
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      7. David Chapman‏ @Meaningness 11 Jan 2019
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        If all you have is hammers, all you see is nails, obvs. Someone who actually understands the situation needs to decide whether you have nails, rails, snails, or pails. This is what “meta-rational competence” means. They don’t teach it in STEM school.https://meaningness.com/metablog/meta-rationality-curriculum …

        5 replies 3 retweets 28 likes
        Show this thread
      8. End of conversation
      1. New conversation
      2. Thomas Depierre‏ @Di4naO 11 Jan 2019
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        Replying to @Meaningness

        Feel strange as i call myself a system thinker *because* i believed that a grand model is not possible and that models are at best local (in all dimensions). That said, i may just live in different circles than the author ;)

        1 reply 0 retweets 3 likes
      3. David Chapman‏ @Meaningness 11 Jan 2019
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        Replying to @Di4naO

        Yes I think “systems thinking” is used two mean two almost opposite things. Rooted in disagreements among the founders of cybernetics in the 1950s I think. Cc @vgr

        2 replies 0 retweets 2 likes
      4. 5 more replies
      1. New conversation
      2. Weston Edwards‏ @alifeofmovement 12 Jan 2019
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        Replying to @Meaningness

        I can't tell if it's just a phase, but after getting a few grand theories under my belt without becoming superman I still find them to be more interesting than not so grand theories. So now I collect them like Pokemon cards. I'm hoping my next grand theory is a 1st edition foil

        1 reply 0 retweets 4 likes
      3. Forfare Davis‏ @Pseudoplotinus 12 Jan 2019
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        Replying to @alifeofmovement @MimeticValue @Meaningness

        Forfare Davis Retweeted David Chapman

        Frameworks function better as grammars, sometimes maps, but never totalizing accounts of reality. Human nature is far too good at reifying an insightful idea until it’s confused with reality itself. Then it’s just an idol.https://twitter.com/meaningness/status/1083805073950400514?s=21 …

        Forfare Davis 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
        0 replies 0 retweets 6 likes
      4. End of conversation

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