GZA - a.k.a. Gary Grice, founding member of the Wu-Tang Clan - is known for an omnivorous intellect and complex lyrics that reference, among other things, astronomy, philosophy, and chess, which he has played since childhood. He was in town this week to lecture at the Harvard Black Men's Forum. But first, he wanted to drop some science. Specifically, oceanography. And biology. And quantum physics. So he went on a three-day tour, meeting scientists around Harvard University and th