This all goes back, for me, to "escape velocity." I never understood this concept, but figured it was my limited grasp of higher mathematical functions. It turns out, though, that "escape velocity" is actually just an engineering construct: it's how fast a rocket carrying a limited supply of fuel has to go to 'escape' Earth's gravity when the fuel run out. In reality, if you have some non-rocket method of getting into orbit, or have a rocket with virtually unlimited fuel, you can do it as slowly as you like. And with a space elevator you can do it slowly enough that you save 90% of the energy a rocket would use, because you aren't accelerating a vast cloud of gasses to ridiculous velocities just to use the reaction to move a modest payload up. Just think of two cars racing at a dragstrip: one is a rocket-powered monstrosity, and the other a normal-sized electric car. The rocket-car will win the race, but the EV will still go fast, while using a tiny fraction of the energy.
Brilliant Silver 2021 Leaf SV40 W/ Pro Pilot & Protection
2009 Vectrix VX-1 W/18 Leaf modules, & 2 lithium E-bicycles.
BAFX OBDII Dongle
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.