Don't ask the barber whether you need a haircut, and don't ask an academic if what he does is relevant.
Nassim Nicholas TalebIf you roll dice, you know that the odds are one in six that the dice will come up on a particular side. So you can calculate the risk. But, in the stock market, such computations are bull - you don't even know how many sides the dice have!
Nassim Nicholas Taleb