Skip to content
By using Twitter’s services you agree to our Cookies Use. We and our partners operate globally and use cookies, including for analytics, personalisation, and ads.
  • Home Home Home, current page.
  • About

Saved searches

  • Remove
  • In this conversation
    Verified accountProtected Tweets @
Suggested users
  • Verified accountProtected Tweets @
  • Verified accountProtected Tweets @
  • Language: English
    • Bahasa Indonesia
    • Bahasa Melayu
    • Català
    • Čeština
    • Dansk
    • Deutsch
    • English UK
    • Español
    • Filipino
    • Français
    • Hrvatski
    • Italiano
    • Magyar
    • Nederlands
    • Norsk
    • Polski
    • Português
    • Română
    • Slovenčina
    • Suomi
    • Svenska
    • Tiếng Việt
    • Türkçe
    • Ελληνικά
    • Български език
    • Русский
    • Српски
    • Українська мова
    • עִבְרִית
    • العربية
    • فارسی
    • मराठी
    • हिन्दी
    • বাংলা
    • ગુજરાતી
    • தமிழ்
    • ಕನ್ನಡ
    • ภาษาไทย
    • 한국어
    • 日本語
    • 简体中文
    • 繁體中文
  • Have an account? Log in
    Have an account?
    · Forgot password?

    New to Twitter?
    Sign up
Meaningness's profile
David Chapman
David Chapman
David Chapman
@Meaningness

Tweets

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

Tweets

  • © 2020 Twitter
  • About
  • Help Center
  • Terms
  • Privacy policy
  • Imprint
  • Cookies
  • Ads info
Dismiss
Previous
Next

Go to a person's profile

Saved searches

  • Remove
  • In this conversation
    Verified accountProtected Tweets @
Suggested users
  • Verified accountProtected Tweets @
  • Verified accountProtected Tweets @

Promote this Tweet

Block

  • Tweet with a location

    You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more

    Your lists

    Create a new list


    Under 100 characters, optional

    Privacy

    Copy link to Tweet

    Embed this Tweet

    Embed this Video

    Add this Tweet to your website by copying the code below. Learn more

    Add this video to your website by copying the code below. Learn more

    Hmm, there was a problem reaching the server.

    By embedding Twitter content in your website or app, you are agreeing to the Twitter Developer Agreement and Developer Policy.

    Preview

    Why you're seeing this ad

    Log in to Twitter

    · Forgot password?
    Don't have an account? Sign up »

    Sign up for Twitter

    Not on Twitter? Sign up, tune into the things you care about, and get updates as they happen.

    Sign up
    Have an account? Log in »

    Two-way (sending and receiving) short codes:

    Country Code For customers of
    United States 40404 (any)
    Canada 21212 (any)
    United Kingdom 86444 Vodafone, Orange, 3, O2
    Brazil 40404 Nextel, TIM
    Haiti 40404 Digicel, Voila
    Ireland 51210 Vodafone, O2
    India 53000 Bharti Airtel, Videocon, Reliance
    Indonesia 89887 AXIS, 3, Telkomsel, Indosat, XL Axiata
    Italy 4880804 Wind
    3424486444 Vodafone
    » See SMS short codes for other countries

    Confirmation

     

    Welcome home!

    This timeline is where you’ll spend most of your time, getting instant updates about what matters to you.

    Tweets not working for you?

    Hover over the profile pic and click the Following button to unfollow any account.

    Say a lot with a little

    When you see a Tweet you love, tap the heart — it lets the person who wrote it know you shared the love.

    Spread the word

    The fastest way to share someone else’s Tweet with your followers is with a Retweet. Tap the icon to send it instantly.

    Join the conversation

    Add your thoughts about any Tweet with a Reply. Find a topic you’re passionate about, and jump right in.

    Learn the latest

    Get instant insight into what people are talking about now.

    Get more of what you love

    Follow more accounts to get instant updates about topics you care about.

    Find what's happening

    See the latest conversations about any topic instantly.

    Never miss a Moment

    Catch up instantly on the best stories happening as they unfold.

    1. David Chapman‏ @Meaningness 26 Apr 2018
      • Report Tweet
      • Report NetzDG Violation

      David Chapman Retweeted John Nerst

      I learned from this a new way of thinking about thinking, “cognitive decoupling,” and its role in disagreements.https://twitter.com/everytstudies/status/989544002511949825 …

      David Chapman added,

      John Nerst @everytstudies
      My Big Fat Postmortem of the spat between Sam Harris and Ezra Klein. http://www.everythingstudies.com/a-deep-dive-into-the-harris-klein-controversy …. #erisology #longreads
      Show this thread
      2 replies 10 retweets 64 likes
      Show this thread
    2. David Chapman‏ @Meaningness 26 Apr 2018
      • Report Tweet
      • Report NetzDG Violation

      Since @everytstudies’ post is long, and has prompted some interesting discussion: here is Sarah Constantin’s explanation of “cognitive decoupling.” It’s an aspect of systematic rationality, focusing on limiting inference. https://srconstantin.wordpress.com/2014/06/09/do-rationalists-exist/ …pic.twitter.com/1QUz9ImPoI

      4 replies 1 retweet 16 likes
      Show this thread
    3. David Chapman‏ @Meaningness 26 Apr 2018
      • Report Tweet
      • Report NetzDG Violation

      Systematic rationality only works if you do limit inference, because nothing is really truly true. If you take true-enough-for-this-context as “truly true,” you infer way too much. If you take it as “false,” you can’t infer anything.

      1 reply 1 retweet 18 likes
      Show this thread
    4. David Chapman‏ @Meaningness 26 Apr 2018
      • Report Tweet
      • Report NetzDG Violation

      David Chapman Retweeted John Nerst

      Effective use of rational inference requires “circumscription assumptions,” which say what sorts of considerations count as relevant in a particular situation, for particular purposes.https://twitter.com/everytstudies/status/989602997264142336 …

      David Chapman added,

      John Nerst @everytstudies
      Replying to @Meaningness
      What it means for separating or not separating scientific findings from political implications is somewhat captured by this excerpt: pic.twitter.com/hKB4kGaOx9
      1 reply 0 retweets 5 likes
      Show this thread
    5. David Chapman‏ @Meaningness 26 Apr 2018
      • Report Tweet
      • Report NetzDG Violation

      The term “circumscription” was introduced by John McCarthy as a key move in the logicist program of AI (which he founded). You can’t use logic in the real world without it or something equivalent. https://en.wikipedia.org/wiki/Circumscription_(logic) …

      2 replies 2 retweets 6 likes
      Show this thread
    6. David Chapman‏ @Meaningness 26 Apr 2018
      • Report Tweet
      • Report NetzDG Violation

      The *capacity* to limit inference to a narrow set of considerations is a prerequisite to rationality. But besides that, there is the *propensity*, which seems to be an aspect of temperament, which varies even among those with the capacity.

      1 reply 1 retweet 8 likes
      Show this thread
      David Chapman‏ @Meaningness 26 Apr 2018
      • Report Tweet
      • Report NetzDG Violation

      There seems to be something of a continuum from high-decouplers to low-decouplers even within high-IQ people who can think rationally when necessary. “Painfully oblivious geeks” are those at one extreme. (I’m close to that, at time at least!)

      1:46 PM - 26 Apr 2018
      • 4 Retweets
      • 9 Likes
      • ∃𝑋[∅∈𝑋∧∀𝑦(𝑦∈𝑋⇒𝑦∪{𝑦}∈𝑋)] 🐜💩🐻💛 Mimetic Contagion Space Pirate John Nerst TOD-zilla Uncarved Bitmap Chris Johnson Ucedo
      1 reply 4 retweets 9 likes
        1. New conversation
        2. David Chapman‏ @Meaningness 26 Apr 2018
          • Report Tweet
          • Report NetzDG Violation

          Insightful discussion of the high/low decoupling continuum by @drossbucket, who is near the middle, despite having a physics PhD and working in software development. The comments on this post are well-worth reading too!https://drossbucket.wordpress.com/2018/04/08/the-cognitive-decoupling-elite/ …

          2 replies 5 retweets 16 likes
          Show this thread
        3. David Chapman‏ @Meaningness 26 Apr 2018
          • Report Tweet
          • Report NetzDG Violation

          Systematic rationality operates *within* circumscription assumptions: a set of principles about what will count as relevant to the reasoning process. The obliviousness of oblivious geeks is in taking circumscription as given, or fixed, not to be questioned or re-examined.

          1 reply 1 retweet 10 likes
          Show this thread
        4. David Chapman‏ @Meaningness 26 Apr 2018
          • Report Tweet
          • Report NetzDG Violation

          Choice of circumscription assumptions is a key form of *meta-rational* reasoning. That is: deciding what will count as relevant is a major part of determining *how* rationality will be applied in a particular situation.

          1 reply 0 retweets 13 likes
          Show this thread
        5. David Chapman‏ @Meaningness 26 Apr 2018
          • Report Tweet
          • Report NetzDG Violation

          So, to summarize my understanding of @everytstudies’s analysis of the Harris-Klein debate: We could take Klein as being unable or unwilling to apply rationality (which requires circumscription) at all. Possibly true, but uncharitable. Alternatively…

          1 reply 1 retweet 5 likes
          Show this thread
        6. David Chapman‏ @Meaningness 26 Apr 2018
          • Report Tweet
          • Report NetzDG Violation

          We could understand Klein as pointing out that Harris is being an “oblivious geek,” i.e. taking a set of circumscription assumptions as a given, and refusing to contemplate alternatives.

          3 replies 1 retweet 8 likes
          Show this thread
        7. David Chapman‏ @Meaningness 26 Apr 2018
          • Report Tweet
          • Report NetzDG Violation

          Here is a positive construal of the value of low-decoupled thinking (from @everytstudies’s post). The opposite of being an oblivious geek is being aware of the richness of the situation.pic.twitter.com/Dmg66Bs5I3

          2 replies 4 retweets 13 likes
          Show this thread
        8. David Chapman‏ @Meaningness 26 Apr 2018
          • Report Tweet
          • Report NetzDG Violation

          To summarize my understanding of @everytstudies’ post in my own jargon: Klein and Harris would have had to have had the meta-rational discussion of what counts as relevant, and why, before getting into the object-level debate. And neither was willing or able to do so.

          5 replies 4 retweets 22 likes
          Show this thread
        9. End of conversation

      Loading seems to be taking a while.

      Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.

        Promoted Tweet

        false

        • © 2020 Twitter
        • About
        • Help Center
        • Terms
        • Privacy policy
        • Imprint
        • Cookies
        • Ads info