Bill Gurley is one of the best and most prominent venture capitalists in the U.S. right now. And let’s be honest, the current tech valuation climate has been very kind to him. So when he blogs about the “b word” (bubble) and follows it up with a media tour, no wonder serious people pay attention. Interestingly, in the intervening two weeks the market has made him look like a genius, while totally disregarding his warnings.