I get that. But even futuristic tech needs maintenance. This is stuff that hasn't had any maintenance for 200 years, and yet there are heaps of computer terminals that still turn on and elevators that go up and down despite two centuries' of neglect, dust, sand, whatever else. I know there's plenty of ruined stuff around, but I guess because this is a TV show, not a computer game, the plot requires that everything works ... whereas in the games, you can find plenty of computers that no longer work and elevators that are out of service and so on.