3 ms·

I somehow think that if people wanted it, it would come faster than 2040. We're working towards fusion power faster than that!

• jarek 13y ago
  If people wanting it made technology feasible, we'd have had flying cars in 1990
  • dllthomas 13y ago
    If it's technologically possible, economically profitable, and people want it, then. Flying cars have difficulties this doesn't (seem to) on all three counts.