We're at university together http://kratom.in.net/ katom The Hyperloop, which Musk previously described as a cross between a Concorde, rail gun and air-hockey table, would cost an estimated $6 billion to build and construction would take 7 to 10 years. Eventually, according to the plan, it would jettison more than 7 million people a year along one of the U.S. West Coast's busiest traffic corridors.