Yes Mellow everything that is measured or capable of being measured has a margin of error in that measurement. The trick is in deciding if that error is significant in what's being measured.
Goal posts for example have to be a certain height but if a set of posts were 1 mm too high would anybody notice ( or care). What would you use to measure them anyway? A tape measure or a NASA grade laser locator? One is good enough, the other is overkill.
No they didn’t but the Yanks are scurrying to try once again to get there first so as to place some old tattered worn flag somewhere with a few footprints thrown in for good measure to say they’ve found proof of previous missions.
Cue all the true believers 🤣 tin hat on already