The engines on his rocket are ex-Soviet surplus
Wut? The Merlin engine was developed by SpaceX, as well as the Raptor engine. ULA has been using the RD-180s, which is what I imagine you are thinking of.
Musky took two decades old technologies and put them together and now everyone thinks he’s a genius.
I mean, he did kinda found the company that made technology previously thought to be completely impractical, if not impossible, and turn it in to a functioning method of space travel at virtually unheard of low costs. I feel like that deserves some credit somewhere, but obviously the engineers he hired did most of the work.
made a car that is totally ruined and has to be rebuilt from scratch if you let the battery charge drop to 0
That uhh… That’s all EVs though. Letting a battery drain entirely will damage it. Same goes for the ones in your phone even, though the damage likely won’t be as severe and you also probably won’t care as much about a $40 battery repalcement.