[mdm13]

The coinflipping example is used by Warren Buffett in the Preface to the Intelligent Investor to show how that if everyone in America flipped coins everyday after a few years there would be people who won all the time and would be sharing their superior coin flipping strategies, etc. But then he explains how that by analyzing the thought process that goes into doing whatever that leads to results is the more telltale sign of reliability of the results. So I guess that would mean looking at how someone who runs bad plays, as opposed to merely looking at all in EV graphs or sample sizes.