That's not sufficient. You're presuming the brain is the only thing required for human-level "AI" (which, in and of itself, is poorly defined). However, how can

That's not sufficient. You're presuming the brain is the only thing required for human-level "AI" (which, in and of itself, is poorly defined). However, how can you distinguish between the brain being the system which generates the human-level "AI", and the brain being the system which merely acts as a proxy for (to express and input into) the human-level "AI"?