This week in tech: Triumph of AlphaGo, new Surface Pro, and a bacteria shirt

This week, a machine came out on top, and an Ivy-League dropout finally got a Harvard degree. A Google-created program called AlphaGo beat its flesh-and-blood opponent, Ke Jie, not once but twice at the game Go. And artificial intelligence isn't just playing games: it is going to be a tool in France to measure whether business students tuning in online are staying attuned to class.