I just finished watching a town meeting with Bill Gates and Warren Buffett that was taped at Columbia Business School last month. The entire meeting was immensely illuminating, but I was fascinated by one thing Warren Buffett said. Before I get to that, let me say that both Mr. Buffett and Mr. Gates were exceedingly optimistic about the future of our country and our economy. [You, at your cynical best: “Yeah, I’d be optimistic too if I were worth $50 ...