> they have a way more advanced tech behing the curtains

not in batteries, thats for sure, that whole area of tech if bottlenecked by the laws of physics. Even nano-batteries that I read about made by nano-structures had the capacity to be charged quite rapdily BUT the energy density continues to be ABYSMAL.

Meaning we never really gonna get something like a T-800 ever, you'd have to run that bish with a tether like something out of Evangelion.