By Mike MacAdam Gazette Reporter Eighteen years. That’s the lifespan of a college freshman. If you were born in 1993, you could be old enough to enroll at the University of North Carolina by 2010 and thus step onto a campus rich in sports tradition. I’m talking most notably, of course, about the Tar Heels’ success on the basketball court, where the men’s team has won the NCAA tournament five times, most recently in 2009. Well, no, that’s not what I’m talking about.