Tangent, but i just had this discussion. The hyperloop, despite all the flaws, is overall a good idea. And unlike fusion and supraconductivity at 250+K, the flaws are actually solvables! I thought i couldn't be done before 2070 or something, but someone just recently showed me the flwas left, the tech we have at teh moment, and he convinced me that a commercial Hyperloop could be available on SOME short haul flight before 2040.
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