In addition to what bws111 wrote:
Re: the MIT capsule: it's nothing like the Hyperloop Alpha concept (hence my post). SpaceX's test track that they're building is designed to handle a wide variety of vehicles, not just the one laid out in the Hyperloop Alpha concept. IMHO the MIT concept is utterly uninspiring. The drag levels are vastly higher, which are going to ruin pretty much every appealing aspect of the concept.
(but no, the tube has no electromagnets, the MIT design involves induced magnetic fields for propulsion)