Slate's having another round of football discussion this week. First came the question of the
and the limits of counterfactual reasoning. Would a quarterback with two healthy knees (or, if you prefer, a more manly heart) would have kept the Bears from losing to a better team? No. Then it was time to look ahead to the titanic, historic, and pervasively brain-damaged Super Bowl clash between the Packers and the Steelers, aka the
. Will football ever get over its concussion problem? Or will everybody just get over caring about it?