QUOTE : We need Holy Fools in our society, from time to time. They perform a valuable role. That’s why we romanticize them. Harry Markopolos was the hero of the Madoff saga. Whistleblowers have movies made about them. But the second, crucial part of Levine’s argument is that we can’t all be Holy Fools. That would be a disaster. Levine argues that over the course of evolution, human beings never developed sophisticated and accurate skills to detect deception as it was happening because there is no advantage to spending your time scrutinizing the words and behaviors of those around you. The advantage to human beings lies in assuming that strangers are truthful. As he puts it, the trade-off between truth-default and the risk of deception is a great deal for us. What we get in exchange for being vulnerable to an occasional lie is efficient communication and social coordination. The benefits are huge and the costs are trivial in comparison. Sure, we get deceived once in a while. That is just the cost of doing business.