On Tue, Apr 23, 2013 at 3:14 AM, Craig Weinberg <whatsons...@gmail.com> wrote:
> A quote from someone on Facebook. Any comments?
>> "Computers can only do computations for rational numbers, not for real
>> numbers. Every number in a computer is represented as rational. No computer
>> can represent pi or any other real number... So even when consciousness can
>> be explained by computations, no computer can actually simulate it."

If it is true that you need real numbers to simulate a brain then
since real numbers are not computable the brain is not computable, and
hence consciousness is not necessarily computable (although it may
still be contingently computable). But what evidence is there that
real numbers are needed to simulate the brain?

Stathis Papaioannou

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