When he was 2, Jeremy Shuler was reading books in English and Korean. At 6, he was studying calculus. Now, at an age when most kids are attending middle school, the exuberant 12-year-old is a freshman at Cornell University, the youngest the Ivy League school has on record. “It’s risky to extrapolate, but if you look at his trajectory and he stays on course, one day he’ll solve some problem we have