Speed Reads
Why would Elon Musk, founder of Tesla and SpaceX, want to spend $54.20 a share, or roughly $43 billion, to buy the 90 percent of Twitter he doesn't already own? Does it have anything to do with 4:20? Or free speech? Stephen Colbert's Late Show offered its own theory Thursday night — as plausible as anything else — and it involves SpaceX.