Future SpaceMichio Kaku the theoretical physicist has established a successful second career as a mass-market science popularizer, simplifying for the general public some of physics’ most complex and esoteric ideas, including quantum theory or the multiverse. Laser cannons. Starships. Aliens. Since he was a little boy in northern California watching Flash Gordon and attempting to make sense of Einstein, Michio Kaku has been preoccupied with the future. He always knew he wanted to work in physics because, as he puts it, scientists and engineers “invent the future” with their innovations.