The fact that a thesis is flawed does not mean that we should not invest in it as long as other people believe in it and there is a large group of people left to be convinced. The point was made by John Maynard Keynes when he compared the stock market to a beauty contest where the winner is not the most beautiful contestant but the one whom the greatest number of people consider beautiful. Where I have something significant to add is in pointing out that it pays to look for the flaws; if we find them, we are ahead of the game because we can limit our losses when the market also discovers what we already know. It is when we are unaware of what could go wrong that we have to worry.