The Importance of Speculative Theories

"We're playing around in speculative territory, rather than getting too attached to like a fun and interesting idea that maybe doesn't have a lot of strong evidence for it," he says. "I think one of the points that Russell and Sagan are making here is that if you have a good theory, the theory should include within itself ways of checking to know if the theory were wrong" He adds: "If it's there's something wrong with the theory, those predictions will not turn out true."