Comment by vidarh

If the brain does not exceed the Turing computable, then it does mean it is possible to accurately simulate the brain. Not only that, but in that case the brain itself is existence proof that doing so efficiently is possible.

If the brain exceeds the Turing computable, then all bets are off, but we have no evidence to suggest it does, nor that doing so is possible. This was in fact my original argument.

The only viable counter to my argument is demonstrating that there are computable functions outside the Turing computable, and that humans can compute them.