On the one hand, these are really smart guys, no question. On the other, toy demos + "this could be the solution to AI!" => likely to be a damp squib.

Entropy maximisation purports to explain all adaptation. However, it doesn't tell us much that we didn't already know about how to go about making good adaptations. For one thing, entropy maximisation is a very old idea - dating back at least to Lotka, 1922.