Empiricists don’t believe in the concept of “momentum” in sports. They find it ridiculous to think that a single display of emotion by a respected member of a team could produce a contagion powerful enough to upend the laws of probability. They will tell you that in a linear form of competition like baseball, a winning season is little more than a random event, a fortunate sampling of individual performances in which many players finish the season at the high end of their expected statistical range. As much as I love statistics, I knew that in this case they were wrong. When the 2004 season
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