It’s like thinking that our exploration of the Earth is still open-ended, and that we might still find the lost city of Atlantis or dinosaurs living in the center of the planet. The more we discover, the less there is to discover later. Now, to a lot of people, that sounds like a naïve way to think about science. There was a time when it once seemed naïve to me. But it’s really just a consequence of the success of science itself. Our era is in no way comparable to Aristotle’s era.”