when he's saying "destroyed, and Lost" he means it literally.. he's talking about things like the the BIG F1 engines on the saturn V, where NASA was considering refitting them to go back to the moon, but so much of the build was tweaked by hand and all the notes are gone, that it would be more difficult to Reverse engineer them, than to simply build NEW again, which is exactly what is being done, ie Artemis, and Starship
it's been investigated for the past 3000 years or so. it's established fact that the earth is round. Trying to appeal to the notion of ambiguity, the whole , "hey keep an open mind.. it needs discussion" concept, is beyond stupid.
towards the end.. it starts to look somewhat Disused...