With Earth Day in mind, I’m going to suggest you find the time to watch Bill Gates’ TED Talk about why he’s backing – and investing heavily in – a new kind of energy technology that has phenomenal potential to change, well, just about everything about the energy conversation. The challenges we face, as Gates describes, are monumental. But so also is the creativity and commitment of some of the folks leading the charge to find solutions to our problems. If you’ve seen Bill Gates give earlier presentations, it’s kind of neat to see his growth in terms of his confidence, his use of illustrations and data, and his ability to engage...