There are sandwich artists and sanitation engineers. Everyone knows they get paid like crap.
Unfortunately “prompt engineers” seem to be getting paid small fortunes when their job is essentially using a massive amount of computing power to commit various levels of intellectual property theft they hope no one will notice.
Trains are easy and they’re easily electrified already. So putting solar on the trains won’t have any advantage.
Rails are the difficult part of railways. They never seem to put them between my house and my work. They’ve put something called a road in between instead.