I’d believe space elevators could be around the corner if we had smaller analogues in production right now. Like a 2 mile tall building supported with miles of carbon nanotube wires.
Well yeah exactly. And that's not considering boring stuff like weather, wear and tear, and what happens if the cable snaps and the bottom half comes crashing down to earth. Even a super-light wire would presumably cause a catastrophic impact (and that's not considering if whatever payload came crashing down with it).
