> Where is the concrete evidence that human intelligence can be simulated by a Turing Machine?
Short of building such a machine I can’t see how you’d produce evidence of that, let alone “concrete” evidence.
Regardless, we don’t know of any measurable physical process that the brain could be using that is not computable. If we found one (in the brain or elsewhere), we’d use it to construct devices that exceeded the capacity of Turing machines, and then use those to simulate human brains.
