Bruno Marchal wrote:
On 08 Apr 2015, at 02:35, Bruce Kellett wrote:
Yes, I had misread how that works. But who wrote the programs it
executes? Who wrote the scheduler?
Let us say God.
But with computationalism, God needs only to create the natural numbers,
and addition, and multiplication.
With physicalism God needs to create a physical universe, the
psychological universe, the mathematics, the link between,
Rubbish. If the physical universe is primary, consciousness supervenes
on the physical and the situation is no different than with comp, where
you have to explain the appearance of the physical. If you have to
appeal to God, then the origin of the physical universe can be no
problem for you.
Physicalism is way ahead on this comparison. Consciousness supervenes on
the physical brain as can be seen by the fact that external
modifications to the brain modify consciousness, and conscious thoughts
modify the brain. The evidence is overwhelming here. Mathematics is
developed as a response to distinct but similar things in the physical
universe. Again, the origin of mathematics does not present any
difficulty for physicalism. Neither does the relationship between the
physical and the mathematical.
Bruce
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