evidence: At one point in "The Hitchhiker’s Guide," Adams introduces the architects of the Earth supercomputer. They’re powerful beings who have been living among us, disguised as mice. At first, they were motivated by simple curiosity. But seeking the question made them famous, and they began considering talk-show and lecture deals. In the end, Earth is demolished in the name of commerce, and their path to existential clarity along with it. The mice greet this with a shrug, mouth vague platitudes, and go on the talk-show circuit anyway. Musk isn’t peddling pabulum. His initiatives have real substance. But he also wants to be on the show—or, better yet, to be the show himself.