One day I was sitting in — I believe it was organic chemistry class — and I realized that the 500 or so people who were in this lecture hall would all go home that night and solve the same problems and come up with the same answers. And those problems were the same problems that were answered by the class the last year and the year before. What I wanted to do was, I wanted to explore problems and areas where we didn’t have answers. In fact, where we didn’t even know the right questions to ask. Because often, the questions we ask, we found out were the wrong questions. We came up with new evidence that totally changed our whole view of what we thought about human evolution.