2009/8/21 Flammarion <peterdjo...@yahoo.com>:
> On 20 Aug, 00:28, Bruno Marchal <marc...@ulb.ac.be> 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
If physicalism is true... in the end it supervenes on physical state
only as for physicalism, computations do not exists unless they are
being instantiated physically.
Also a computation is "implementation" agnostic... how can you explain
that with physicalism and denying any existence to computation ?
All those moments will be lost in time, like tears in rain.
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