Just to be sure: The "neurons" in today's AI have nothing to do whatsoever with real neurons.
What we can do is simulate very simple brains by simulating relatively few neurons as they appear in worms. In this sense we are multiple magnitudes away where the increasing complexity implies exponential increasing difficulty.
I would think we are so far away that there will be unknown unknowns we encounter on the way.
Yes, physically absolutely nothing. But conceptually they seem to to form this very generic function from inputs to outputs that neurons also form.
> Just to be sure: The "neurons" in today's AI have nothing to do whatsoever with real neurons.
Yeah, but it's hard to explain this to people, especially AI-pro people. Too many are convinced that all we are doing is a cut-down version of the human brain, and it's hard to explain to them that, no actually, we aren't modeling the human brain to the level of granularity you think we are.