There's this idiot flat earther on a body building website I lurk and he thinks China and dinosaurs don't exist.either he's trolling or these people are a very special kind of stupid.it boggles my mind
it's the second option you posted. i work with one of these troglodytes. he told me that airplane windows are round to make the horizon of earth LOOK round rather than it being the curvature of the planet. same fool shows me pictures from the space station of "alien ships" but says the round planet (earth, if you are one of "those" people) in the background is fake...