I always assumed maglev technology would run on opposed electromagnets. This is an alternative I had heard of, but didn't really feel (to me) practical or economically feasible. This is very cool, kinda cute, and somewhat convincing... or at least intriguing. Of course, they don't discuss the composition and cost of the superconducting core, and scaling this up to human transport scale probably isn't feasible. For the time being.
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