On 20 Aug, 00:28, Bruno Marchal <marc....domain.name.hidden> wrote:
> On 19 Aug 2009, at 22:21, Flammarion wrote:
>
>
>
> > Where he says computation can happen without any physicial process at
> > all. I don't see any evidence for that
>
> I am explaining this right now.
>
> > Only Bruno thinks computation trancends matter.
>
> The notion of computation and computability have been discovered by
> Mathematicians working around the foundation crisis of math after the
> discovery by Cantor and others of paradoxes in set theory.
>
> The idea is that computation should be redefined as physical
> computation is a very recent one, and is due to people like David
> Deustch and Landauer. And it does not really work as such. Deutsch
> "reconstruction" of the Post-Church-Turing thesis is really a
> different thesis.
Of course you can have theoretical
truths about computation
But show me something that has been computed by
an immaterial computer.
> > CTM *implies* materialism, and the MGA doesn't work.
>
> CTM is neutral on materialism, even if many materialist use
> incorrectly comp to put the mind body problem under the rug. UDA,
> including MGA, shows why this fails.
>
> What is in MGA which does not work?
It's a reductio of the idea that mental states
supervene on computational states.
CTM must be cast as the claim
that mental activity supervenes on computational
activity.
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Received on Fri Aug 21 2009 - 00:33:00 PDT