Mark Cuban Does the Bubble Beat

Mark Cuban should know something about bubbles. After all, he became a billionaire in the 1990s stock bubble selling his start-up to Yahoo for what almost certainly was a grossly inflated price. But just as winning the lottery doesn't make someone an expert on probabilities and statistics, hitting the jackpot once doesn't mean someone knows much about bubbles.

Cuban demonstrated this point in a blogpost headlined, "Why This Tech Bubble is Worse than the Tech Bubble of 2000." The gist of his a...