Elon Musk’s hyperloop dream began to take shape in reality last weekend as 27 teams, including six from outside the United States, participated in a competition to create the mass transit vehicle of the future. The competition in Hawthorne, California, sponsored by SpaceX, which Musk founded, attracted teams made up mostly of students who created pods designed to run on hyperloop transportation systems. In a hyperloop system, the vehicles, or pods, travel in a vacuum in tubes at speeds close to the speed of sound.