I agree and as a kid I always wanted to visit both the Moon and Mars. But for any of this to happen we need a breakthrough that applies Moore's law to $/kg for

I agree and as a kid I always wanted to visit both the Moon and Mars. But for any of this to happen we need a breakthrough that applies Moore's law to $/kg for space travel to become economical. We need cost effective nuclear fusion to increase our energy budget. Or material science has to advance to the point that space elevators or launch loops and similar become feasible. Does anyone know the timeline on those?