I agree with you on the premise that the human brain is not a digital computer. Simulation would require an enormous amount of compute. However, I believe the argument that a computer cannot achieve any form of consciousness can be challenged. I think you argue that consciousness is not an option because a Turing machine’s calculations can be carried out by individuals who wouldn’t understand or feel anything, therefore being unconscious. Correct me if I’m wrong. My counterpoint is: “Consciousness isn’t experienced by the individual calculations, but rather emerges as a systematic concept from the sum of its parts.”

What do you think of this one?