Listen, I am a wall street guy, Robert Shiller calls everything a bubble, almost always.  An article saying Shiller calls bitcoins a bubble is like an article saying that the second most popular yellow thing that goes with ketchup is scrambled eggs.  If shiller said bitcoins were not in a bubble that would be huge news... but him saying bitcoins are a bubble is like the pope saying he prefers people to be good to each other... its simply not news.