On 22 Aug 2009, at 20:06, Brent Meeker wrote:
>
> Bruno Marchal wrote:
>>
>>
>>
>>
>> If the context, or even the whole physical universe, is needed, it is
>> part of the "generalized" brain. Either the "generalized" brain is
>> Turing emulable, and the reversal reasoning will proceed, or it is
>> not, and the digital mechanist thesis has to be abandoned.
>
> That's what makes the point interesting. Many, even most,
> materialists suppose that a brain can be replaced by functionally
> identical elements with no dimunition of consciousness and that a
> brain is Turing-emulable BUT the "generalized brain" may not be
> Turing-emulable. I personally would say no to a doctor who proposed
> to replace the whole physical universe (and me) with an emulation.
OK.
Do you agree that this, not only entails the falsity of CTM
(computationalist theory of mind), but also on any computationalist
theory of matter.
Your consciousness has to be related to a non computable physical
process, in actuality. Quantum computer would not be universal in
Deutsch sense.
I am OK, with this. My point is not to convince people that comp is
correct, but only that comp makes physics "coming from number dreams",
to be short.
Saying "no" to the doctor, is your right (even your comp justifiable
right), but relatively to the reasoning it is equivalent with stopping
at step zero.
So now, your mind is free to look if the reasoning is valid. No worry
with the uncomfortable consequences, given that you don't believe in
the initial axiom. Right?
Well, you may be not interested in the consequence of a theory in
which you don't believe, but you may be intrigued.
Unless you believe the comp hypothesis is inconsistent? I don't think
you believe this either.
Bruno
http://iridia.ulb.ac.be/~marchal/
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Received on Sat Aug 22 2009 - 20:54:43 PDT