In December 2014, an engineer with the unlikely name Brogan BamBrogan was in the driveway of his clapboard Los Angeles house, loading up his car for a holiday road trip to Northern California, when venture capitalist Shervin Pishevar messaged him for a favor. The two were founders of Hyperloop One, a startup building futuristic tubes to zip people from city to city. Shervin Pishevar, a partner at Sherpa Capital, was the money guy; BamBrogan the chief technical officer. Pishevar's brother, Afshin Pishevar, was driving west from Washington to join the company as general counsel, and needed a place to stay. BamBrogan and his wife stopped packing, cleaned the bathroom, and tucked a spare key under the front mat of his Los Feliz home. When they returned a few days later, Afshin Pishevar was still there. Their houseplants were littered with cigarette butts.