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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. José Luis Ricón (Artir)‏ @ArtirKel 28 May 2018
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      Replying to @Meaningness @ESYudkowsky @juliagalef

      (?) It sounds like 'true theory of reality' is something that could be occupied only by a final theory of physics. Decision theory just tells you the objectively best way of acting to satisfy a set of preferences.

      1 reply 0 retweets 0 likes
    2. David Chapman‏ @Meaningness 28 May 2018
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      Replying to @ArtirKel @ESYudkowsky @juliagalef

      “Objectively best” assuming a set of axioms is satisfied. There can sometimes be a bait-and-switch or motte-and-bailey here when you try to apply this to a concrete real-world situation.

      1 reply 0 retweets 2 likes
    3. José Luis Ricón (Artir)‏ @ArtirKel 28 May 2018
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      Replying to @Meaningness @ESYudkowsky @juliagalef

      Do you have a specific example in mind?

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    4. David Chapman‏ @Meaningness 28 May 2018
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      Replying to @ArtirKel @ESYudkowsky @juliagalef

      Well, to get decision theory to apply, you have to characterize the situation in terms of a set of well-defined actions, well-defined outcomes, well-defined goodnesses, and you need some meaningful way of estimating probabilities. None of those are objectively given.

      2 replies 0 retweets 0 likes
    5. Eliezer Yudkowsky‏Verified account @ESYudkowsky 28 May 2018
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      Replying to @Meaningness @ArtirKel @juliagalef

      This example isn't analogous but I'm curious how you'd reply to a student saying, "The notion of 'objectively true sentences' is wrong and can't be rescued, because words don't have culturally independent meanings and there's no Objective Teacher to grade answers as correct."

      1 reply 0 retweets 2 likes
    6. David Chapman‏ @Meaningness 28 May 2018
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      Replying to @ESYudkowsky @ArtirKel @juliagalef

      This has several moving parts, so it’s a bit complicated. First, there is no clear definition of “objective” or “objectively true,” as far as I have been able to discover. There are several pretty different uses that are all quite vague.

      1 reply 0 retweets 1 like
    7. David Chapman‏ @Meaningness 28 May 2018
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      Replying to @Meaningness @ESYudkowsky and

      Under some reasonable interpretations of “objectively true,” there aren’t any outside math and possibly QFT. Under some other reasonable interpretations, lots of things are objectively true. Lots of arguments founder on this contrast.

      2 replies 0 retweets 1 like
    8. David Chapman‏ @Meaningness 28 May 2018
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      Replying to @Meaningness @ESYudkowsky and

      People who invoke “culture” here typically want to argue for some kind of extreme relativism under which they are allowed to win any argument by dismissing factual evidence and saying everything is just power politics, so they win because they are more oppressed than you.

      1 reply 0 retweets 2 likes
    9. David Chapman‏ @Meaningness 28 May 2018
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      Replying to @Meaningness @ESYudkowsky and

      Words are mostly irrelevant to the issue, I think. The problems are ontological, not linguistic. It doesn’t matter what you call a categorical distinction; it matters how you draw it.

      1 reply 0 retweets 1 like
    10. David Chapman‏ @Meaningness 28 May 2018
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      Replying to @Meaningness @ESYudkowsky and

      “Man proposes, Nature disposes” is basically correct. Lots of things don’t work. In fact, since there aren’t any absolute truths (outside math and maybe QFT) nothing works perfectly consistently.

      1 reply 0 retweets 0 likes
      David Chapman‏ @Meaningness 28 May 2018
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      Replying to @Meaningness @ESYudkowsky and

      The meta-rational question is: how can we use rational methods effectively, given that they aren’t about Objective Truths? We agree that we *do* often use them effectively, and that this is very important. I think that an accurate understanding of how that can be should help.

      8:31 PM - 28 May 2018
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