Everyone at the MIT Sloan Sports Analytics Conference was Jewish—and by “everyone” I mean that while Jews comprise 2 percent of the American population roughly every third person at the conference was Jewish. I met some kids from the Harvard Sports Analysis Collective, a group of terrifyingly bright 20-year-olds, and quickly learned, to my lack of shock, that most of them were Jews. The business majors and the MBAers were Jews; one conference organizer, a Sloan student with a distinctively Irish name told me how glad he was I was writing this story, because clearly everyone there, himself included, was Jewish. The journalists covering the conference were Jews. And Mark Cuban—his family name was Chopininski—is Jewish, too. This matters.