“Scientists and inventors alike, they first guess a new explanation—a hypothesis—as wild and innovative as they can conjure. And then they test it rigorously, their hearts filled with the hope they’ll find a door or a window that reframes their understanding of the universe, of life, of a flower, or a cure for cancer. And it all starts with a guess, a good explanation as unlikely as it is plausible. A story at the knife’s edge of innovation, bleeding truth and pushing the limits of knowledge further afield. That impossibly sharp place where dreams and reality converge. A hard-to-vary idea as powerful as the one that broke Einstein’s General Relativity and his assumption that the laws of nature don’t depend on the motion of an observer.”