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Plinz's profile
Joscha Bach
Joscha Bach
Joscha Bach
@Plinz

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Joscha Bach

@Plinz

FOLLOWS YOU. Artificial Intelligence, Cognitive Architectures, Computation. The goal is integrity, not conformity.

San Francisco, CA
bach.ai
Joined April 2009

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    1. Joscha Bach‏ @Plinz 10 Jan 2018
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      Replying to @chrisfcarroll @Grady_Booch @Evollaqi

      If we know multiple theories to have the same explanatory power, we are not free to pick one as our preferred belief, but are rationally forced to remain agnostic. (Pragmatically, we may be forced to make bets, though.)

      1 reply 0 retweets 0 likes
    2. Chris F Carroll‏ @chrisfcarroll 12 Jan 2018
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      Replying to @Plinz @Grady_Booch @Evollaqi

      So, as with believing in other minds in preference to p-zombies, I believe in a string of things that are neither tautological nor empirical; for instance that I live in a universe that is so stable and reliable I can meaningfully study it.

      2 replies 0 retweets 0 likes
    3. Chris F Carroll‏ @chrisfcarroll 12 Jan 2018
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      Replying to @chrisfcarroll @Plinz and

      But notions like explanatory power & scientific methodology can only come into play after making the prior choice to believe in the existence of things to which they apply?

      1 reply 0 retweets 0 likes
    4. Joscha Bach‏ @Plinz 12 Jan 2018
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      Replying to @chrisfcarroll @Grady_Booch @Evollaqi

      I would say that they have the existence of a ground truth that manifests as some regularity in observable phenomena as a prior, but this prior does not need to be taken on faith.

      1 reply 0 retweets 0 likes
    5. Chris F Carroll‏ @chrisfcarroll 13 Jan 2018
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      Replying to @Plinz @Grady_Booch @Evollaqi

      –What about them makes 'ground truth' a more accurate name for them than 'ground belief'? –When you mention priors, you're thinking we can apply bayesian reasoning from our evidence of other minds & a reliable universe and hence have something firmer than mere belief?

      1 reply 0 retweets 1 like
    6. Joscha Bach‏ @Plinz 13 Jan 2018
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      Replying to @chrisfcarroll @Grady_Booch @Evollaqi

      Once a belief is entirely conditional on its priors, it ceases to have any element of faith in it. I see rationalism as a Kantian program of reducing all beliefs entirely to priors, so all statements are conditional, and you know these conditions.

      1 reply 0 retweets 1 like
    7. Joscha Bach‏ @Plinz 13 Jan 2018
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      Replying to @Plinz @chrisfcarroll and

      Ground truth is the objective nature of the system that you are observing. If you are in a dream (like the characters in Twin Peaks), there won't be a ground truth that manifests as observable regularity; a dream universe is not mechanical, and so it does not yield to science.

      4 replies 1 retweet 2 likes
    8. Chris F Carroll‏ @chrisfcarroll 14 Jan 2018
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      Replying to @Plinz @Grady_Booch @Evollaqi

      an aside: I think we detoured from computationalism per se when I said No to “The theory that there are others with minds similar to mine has more explanatory and predictive power than its negation?”. That No is driven by …

      1 reply 0 retweets 1 like
    9. Chris F Carroll‏ @chrisfcarroll 14 Jan 2018
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      Replying to @chrisfcarroll @Plinz and

      standardish criticisms of empiricism, namely sense-data sceptism and the problem of induction. The detour interests me, but please don't feel obliged to share my interest. I think what I'm trying to do on this thread then is update/restate those arguments in your vocabulary …

      1 reply 0 retweets 1 like
    10. Chris F Carroll‏ @chrisfcarroll 14 Jan 2018
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      Replying to @chrisfcarroll @Plinz and

      1) Problem of Induction becames “There is no argument that regularities observed today describe the universe I will observe tomorrow except for the (circular) argument that the regularities I observed yesterday worked today.” …

      2 replies 0 retweets 1 like
      Joscha Bach‏ @Plinz 14 Jan 2018
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      Replying to @chrisfcarroll @Grady_Booch @Evollaqi

      Why is that argument circular?

      10:06 AM - 14 Jan 2018
      1 reply 0 retweets 0 likes
        1. New conversation
        2. Chris F Carroll‏ @chrisfcarroll 14 Jan 2018
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          Replying to @Plinz @Grady_Booch @Evollaqi

          I was going to say… I meant 'today' as an unbound variable so: “Regularities observed at time x will hold at time x+1, because regularities at some times y have been observed to hold at time y+1’ But that may be flawed, and …

          1 reply 0 retweets 1 like
        3. Chris F Carroll‏ @chrisfcarroll 14 Jan 2018
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          Replying to @chrisfcarroll @Plinz and

          … I may need to think harder about what a computational version of the problem of induction looks like. (My background confidence is roughly based on the belief that a version of PoI can be constructed for any given version of empiricism)

          1 reply 0 retweets 1 like
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