During today's convention, Judge Paul Matey of the Third Circuit did a SOC! Sidebar on Baseball cards. Judge Matey has some insights on how baseball cards interacts with the law, but he made a point about calling balls and strike that I had never heard before.

By now, everyone knows Chief Justice Roberts's famous line that umpire simply call balls and strikes. But Judge Matey made a different point. Before a pitcher throws his first official pitch, he will throw several warmup pitches. Though these pitches do not count, the umpire will signal whether the pitch is a ball or a strike. These warmup pitches allow the pitcher to understand what the judge's strike zone will be. From game to game, an umpire might change his strike zone. But the hope is that an umpire will use the same strike zon

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