On 20 Sep 2013, at 21:00, John Clark wrote:
On Fri, Sep 20, 2013 at 10:59 AM, Bruno Marchal <marc...@ulb.ac.be>
wrote:
> As Rolf Landauer said "Computation is physical",
Yes, Landauer is a major proponents of that idea. If that is true,
then computationalism is false.
Bullshit.
I gave you the reference, and you convince no one of any rational
reason to stop at step 3 of the main reasoning, nor did you consider
the mathematical theory.
So your "bulshit" seems be a bit premature.
And the, what is the meaning of "computation is physical"? It looks to
me that this consists in single out some universal system and declare
that only running it makes things real. This implies ontologial
commitment, reification of a level of description, etc. All those
things which gives "philosophy" a bad reputation. That some scientists
do that too does not makes such type of reasoning more correct or
productive.
What does mean "physical"?. I don't take that notion for granted.
> With comp, a physical process is the result of the first person
(plural) indeterminacy beaing on all computations.
So your great discovery is that you don't know what the end of a
computation will be until you come to the end of the computation.
Some have said exactly this to Feynman for his sum over histories
formulation of QM. It is the same problem, with similar conclusions,
and both are testable and comparable.
Just that with comp we have more relative states, a priori. But the
arithmetical quantization (I give the equations) shows that the
problem is not trivial, and that comp is not yet refuted by physics.
You have study only 2/8 of part UDA, and 0/8 of AUDA, so you might try
to be cautious in your judgment.
Bruno
John K Clark
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