On 29 Dec 2012, at 21:15, meekerdb wrote:

On 12/29/2012 4:56 AM, Stathis Papaioannou wrote:
On Sat, Dec 29, 2012 at 6:12 AM, Bruno Marchal<marc...@ulb.ac.be> wrote:

It's possible to prove that computers can be conscious if it can be
proved that the physical movement of the parts of the brain can be
simulated by a computer.

Assuming you can prove consciousness is related to those physical movements.
OK.
It goes like this:

1. Assume consciousness is caused by movement in the brain.
2. Assume that the brain movement is computable.
3. Then consciousness is computable.
(4. But if consciousness is computable, then the physical world must
be a product of consciousness rather than the other way around.)
But 4 doesn't follow. In fact 1 already assumes consciousness is a product of physics; so 4 would be a contradiction.


Not really. 1 might assume that consciousness is caused by movement in the brain, in virtue of the fact that those movements (whatever they truly are) emulate a computation. In that case 4 does follow (although this is not entirely obvious).

Bruno




Brent


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http://iridia.ulb.ac.be/~marchal/



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