To be clear, the basis for Brenner’s confidence is not advances in computer science or neuroscience as such. The basis is that human intelligence originated by accident (“blind fancies”). He is entitled to that opinion but he hasn’t offered evidence for thinking that it is science.
Egnor: Mental activity always has meaning—every thought is about something. Computation always lacks meaning in itself. A word processing program doesn’t care about the opinion that you’re expressing when you use it.