To be fair, it is possible to say "it's a bubble" and have to wait a few years to be proved right. It takes nerve to hang on until you're proved right. See The

To be fair, it is possible to say "it's a bubble" and have to wait a few years to be proved right. It takes nerve to hang on until you're proved right. See The Big Short http://en.wikipedia.org/wiki/The_Big_Short http://en.wikipedia.org/wiki/The_Big_Short for good examples of this during the recent sub-prime housing bubble.