.... well, so my friend would have me believe.
He's got so engrossed in reading these conspiracy theories, he believes almost any conspiracy theory going.
Granted, some of them MIGHT have some credibility, but a flat earth ..... seriously ??
So ALL the photographs we've ever seen of a round earth are fake and all the greats. viz; Nicolaus Copernicus, Galileo Galilei, Sir Isaac Newton were all wrong ..... either that, or they were part of an elaborate cover up, dating back centuries.
Out of curiosity, I Googled and came up with:
https://www.theflatearthsociety.org/forum/
.... some interesting stuff in there, especially if you want a good laugh :)