Is building a Space Elevator only a practical problem, as Michio Kaku claims, related to the development of sufficient carbon nanotubes. Or is it also a theoretical challenge? Finding an answer is important because this science fiction concept might be safer, easier and cheaper than conventional rockets.
Amazing idea or just science fiction? Funny comments on YouTube: arrives in space "oops wrong floor" (by Justin S); “I’ll take the stairs” (by Joe).