Nice explanations! The flat earth thing is really ridiculous. If someone is willing to ignore everything we've learned from science and history, suspending the laws of nature, ignoring observations, and letting their imaginations run wild, then the earth could be a ping pong ball filled with elephants. There's really no limit to 'open minded' imagination, so it's nearly impossible to get anywhere with rational arguments.

What I haven't heard from flat-earthers is what lies beyond. Where does the world end? There be dragons? And maybe a pulley system to drag that sun back into position on the other side of the map?