Mark Sargent's Flat Earth Clues movie is probably useful to sit through.

Mark Sargent doesn't get to the proof of a flat earth earth here. The closest he came to a proof on Noori a few nights ago was the proposed experiment of 2 ships going in opposite directions meeting up in a week or a month. I don't know why he proposes 2 ships. Why not one ship going around Antarctica? It could even be a little above the Antarctic Circle. In any case, his movie is probably useful to watch. He gets into some really zany speculation which is fine. He uses the airplane routes in the southern hemisphere being switched off GPS as a key point which I guess is interesting and useful too. I didn't know that before I watched this. Do ships turn their GPS off too? He doesn't address that. I still like my circumnavigation idea with either ship or plane better as proof.