Every March, the NCAA men's basketball tournament blankets newspapers and the Internet, and attracts millions of television viewers over the course of three weeks. Will a perennial favorite like Duke win? Or will it be a dark horse like Gonzaga? The phenomenon known as March Madness galvanizes a nation of viewers as few other sports events can. The reason? Bracketology. America eagerly watches as 64 teams become 32, then 16, then 8, then 4, then...