The dirty secret though is that AI isn't doing anything nearly comparable to what a whole human brain is doing. It's performing the functions of perhaps a small subset of NNs in the brain or maybe the equivalent of what a small rodent's brain is capable of doing. Obstacle avoidance, route planning, categorizing objects in vision, even language related functions are more of a mapping than an understanding. I think the point still stands that we're making very inefficient use of the hardware that we have. Universities need to be smarter about this and figure out how such a limited network of squishy cells do all the things they do, that's the whole point of concentrating smart people in an environment where they're given the freedom to pursue ideas without worrying about whether or not it generates a profit. You learn the 'how' and the 'why' rather than just the 'what makes money'.