A scarcity of confidence can be a good thing

Malcolm Gladwell's latest:

Bridge is Wall Street in miniature, and the reason the light bulb went on when Greenberg looked at Cayne, and Cayne looked at Spector, is surely that they assumed that bridge skills could be transferred to the trading floor—that being good at the game version of Wall Street was a reasonable proxy for being good at the real-life version of Wall Street.

It isn’t, however. In bridge, there is such a thing as expertise unencumbered by bias. That’s because, as the psychologist Gideon Keren points out, bridge involves “related items with continuous feedback.” It has rules and boundaries and situations that repeat themselves and clear patterns that develop—and when a player makes a mistake of overconfidence he or she learns of the consequences of that mistake almost immediately. In other words, it’s a game. But running an investment bank is not, in this sense, a game: it is not a closed world with a limited set of possibilities. It is an open world where one day a calamity can happen that no one had dreamed could happen, and where you can make a mistake of overconfidence and not personally feel the consequences for years and years—if at all. Perhaps this is part of why we play games: there is something intoxicating about pure expertise, and the real mastery we can attain around a card table or behind the wheel of a racecar emboldens us when we move into the more complex realms. “I’m good at that. I must be good at this, too,” we tell ourselves, forgetting that in wars and on Wall Street there is no such thing as absolute expertise, that every step taken toward mastery brings with it an increased risk of mastery’s curse. Cayne must have come back from the Spingold bridge tournament fortified in his belief in his own infallibility. And the striking thing about his conversations with Cohan is that nothing that had happened since seemed to have shaken that belief.