Google Deep Mind’s AlphaGo won two games against the world go champion, Lee Sedol. This is a ginormous triumph of statistical methods in general and machine learning in particular over “symbolic AI.” I remember writing an essay for a class in philosophy some years ago about the progress of AI game engines and the somewhat unimpressive achievements of Deep Blue. It was of course exciting to see a computer beat a reigning chess world champion, but underneath all the heuristics IBM implemented for chess, it was all “brute force.