Now that the media kerfuffle surrounding Elon Musk’s Hyperloop transit system proposal has settled down to a dull roar, it’s a good time to step back and consider in detail some of the real innovations and difficult issues raised through analysis of the 57-page Hyperloop plan. The shortest description of the Hyperloop is Musk’s own bon mot: “It’s a cross between a Concorde, a rail gun, and an air hockey table.”
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