For example, last Monday, I was out walking my dog before heading off to work, when I met a cousin who lives nearby. We stopped to talk a while, and before long she asked if I’d heard about “13 Bankers.” I said I hadn’t but I’d look into it. Ten hours later, I was at a little cocktail party, when a friend asked the same question. “Have you heard about 13 Bankers?” And I gave the same answer, “No, but I’ll look into it.” So I did. And I found that “13 Bankers” is a book that had just...