Comment by vidarh
9 hours ago
Any Turing complete computational device is computationally equivalent to any other, irrespective of whether it carries out the computation serially or in parallel or on a fixed set of instructions or an infinite set.
Unless you can demonstrate that the human brain can compute a function - any function - that exceeds the Turing computable, there is no evidence to even suggest it is possible for a brain not to be computationally equivalent to a computer.
I'm not saying it's impossible. I'm saying it's highly improbable to ever come close to fruition, since if you want to be completely accurate in your computations, you'd have to model the physical effects of every single atom in the brain and how they affect each other, in realtime (physically, chemically, electrically, etc.). Not only would that be computationally expensive, but you'd also need to know the complete set of rules for doing so, which includes how things interact at the quantum level.