Sour grapes at Facebook over Google's AI victory

Backhanded congratulations from the company's head of AI research to Google DeepMind

Poor Facebook. Just a few months ago, the social network thought that its AI experts were on the cusp of a breakthrough, making a computer that could play Go faster than any previous machine.

Then Google came along and blew them out of the water, revealing first that it had built a Go computer capable of defeating a professional human player, and then going on to beat Lee Sedol, the greatest player of the last decade, 4-1 over the course of a week.