2011/7/11 meekerdb <[email protected]> > On 7/10/2011 8:16 AM, Bruno Marchal wrote: > >> You confuse perhaps with Schmidhuber's position, or some digital physicist >> (DP). But as I have explained many times here that this position does not >> work. Computationalism or digital mechanism (DM) is the idea that "I" am a >> machine, and by the first person indeterminacy, and the way the laws of >> physics have to emerge from computations, the physical universe (nor the >> fundamental reality) cannot be described entirely by a computation. On the >> contrary it is a sum on an infinity of computations. >> >> If the universe is a computation, then "I" am computable, but then it >> cannot be a computation (by what I say above, it is not obvious). So with >> comp, or without comp, the physical universe is not a computation. With >> comp, the laws of nature are not computable, or have strong non computable >> components. >> >> DM -> ~DP >> DP -> DM, >> >> So DP -> ~DP, so ~DP. >> >> >> >> Bruno >> > > This confuses me. When you say the universe is not computable, you mean it > is not the process of computing a function. But you think it is generated > by a UD. Right? In other words, you are saying what a UD does is *not* a > computation. > > Brent > > No he is saying that the univese is the result of an infinity of computation going through its current state... an infinity of computation is *not computable*, hence digital physics is false. The UD of course runs all programs and is computable, but the UD generates and runs *all* programs, it's not a program that computes the universe.
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