"If I could meet anyone in history, it would be Nikola Tesla. He was a Serbian scientist who lived around the turn of the twentieth century and is the reason we have alternating current electricity. He and Edison were rivals, and Edison went to great lengths to discredit him. Tesla moved from Serbia to New York and had a huge lab there where he did a lot of experiments with electricity. He'd go over and over the possible results of his experiments in his head, running through what would happen if he did this or that, and working things out mentally before he actually conducted them. He also did public demonstrations with electricity and people---in a World's Fair kind of way. He was an electrical rock star. Everybody wanted him at their parties."