...cameras & film. Just one of 14 million things that went through the process that still exist and show all the signs of use.
Honestly faggot, having done all the engineering work and R&D they did to develop everything they needed to do it, and NOT do it, wouldn't even work. You'd never get the data to make the improvements from mission to mission they did.
Having done everything they did on earth, it would have been FAR easier to just go there with what they had each time, than to try doing all that ground work here, generation after generation, with fully working equipment, based purely on guesses. After two generations with no actual flight, you'd have chaos and after 13 fake missions, nothing they'd be doing would have any resemblance to reality.
But it does. You could build that shit over again today, and it'd work. It'd still be analog and shitty and dangerous as hell compared to what we'd do now, but, it'd work.
Shit's real. Sorry right-wing government-haters.