You can self train, like AlphaGo or that pong playing thing. As for the aesthetics part, there are theories on what aesthetics is, and part of it has to do with

You can self train, like AlphaGo or that pong playing thing. As for the aesthetics part, there are theories on what aesthetics is, and part of it has to do with parsimony. Machines can certain constrain themselves on that.