A recent observation that seems to provide additional structure on how the bots may be learning (1) is interesting. The Artificial General Intelligence enthusiasts, who have been making a lot of noise by observing that they can train a machine from pixels on the screen, may want to take note. Training a machine to play games is a lot easier than getting Silicon to "think." The computer scientists appear to be getting a bit ahead of themselves (even those with a Neuroscience degree). God does have a sense of humor and She will lead many astray in the coming decades.
Engineering and Computer Science are easy. Medicine and Economics are less so. It is difficult to reduce complex questions to deterministic equations with binary outcomes. And, AI is squarely in the latter, for intelligence emanates from understanding uncertainty and how it affects outcomes. Equations do not work in this realm and experiments that create, "big noise," do not either. We are now creating a crop of computer scientists, locked onto the keyboard, hunting Python and drinking Java, as if there is nothing beyond it. This is problematic. If they continue in that vein, they could reduce themselves to the guy, who tweets garbage every day.
Humans have an ego - and that is going to keep them constrained from progress. The ones who make noise, are endowed with ignorance and the ones in the know, may keep quiet.