On 20 Sep 2012, at 16:47, Craig Weinberg wrote:
On Thursday, September 20, 2012 10:14:25 AM UTC-4, Bruno Marchal
wrote:
On 20 Sep 2012, at 14:27, Craig Weinberg wrote:
Because we know for a fact that our consciousness correlates with
neural activity ...
We don't know that. It is a theory, a belief, an assumption, ...
Some people have believed that consciousness correlates to the state
of the liver.
We never know if a theory is "true". We can only know when a theory
is false.
Bruno
I would agree that it would be only a theory that brain changes
'produce' consciousness, but I would say that we can say with
confidence that changes in our awareness are more tightly
synchronized with changes in brain activity than with those of the
liver, or any other thing in the universe that we can observe.
I agree, and it is close to my working *hypothesis*, although
dispensable by choosing a lower level.
The problem is in the choice of the theory used for making sense of a
correlation between "changes in our awareness" and "changes in brain
activity".
When we stimulate the brain magnetically, that event correlates
directly with subjective experience. I don't think that there is
anything else we could stimulate which would cause that.
It follows from your hypothesis. With comp this would be relatively
occurring (in some sense, as it really occurs out of time in
arithmetical platonia) when you stimulate any relatively concrete
universal machine emulating the magnetic stimulation of the brain
(where emulating means simulating at the correct subst level, or below).
It looks to me like a "don't ask" theory. It takes Matter ( PRIMITIVE
matter) for granted, it takes consciousness for granted, and it
relates the two by some sort of magical trick or, with all my
respect, pompous word.
It is coherent, as PRIMITIVE Matter is consistent with non-comp, but
it looks like making both matter and mind incomprehensible at the
start, and then it introduces "puppets" in the picture.
Bruno
Craig
http://iridia.ulb.ac.be/~marchal/
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