All the problems of deep space travel, bought down to the surface of the planet, such that you can travel about the speed of a bullet within a couple of cm of a gun barrel.
Sadly almost no one in the main stream media assessed this stuff critically from a scientific/ engineering point of view. They just took them at their word when they said they could construct the completely untested large scale hyperloop for 1/10th the cost of a regular high speed rail connection.
They took them at their word when they said it would only cost 20 bux, and take on 25 minutes. In reality the engineering problems are probably insurmountable. It would be like proposing a floating roadway across the Mediterranean or something.
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