The hyperloop, Elon Musk’s futuristic, tube-based “fifth mode of transportation” has stoked imaginations unlike any recent transportation technology except for maybe self driving cars.
Lots has been said about it—Musk called it a “cross between a Concord, a railgun, and an air hockey table,” while the media has latched on to the promised speeds of more than 700 mph and travel times between San Francisco and Los Angeles of 35 minutes.

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