Ball earth definitely fits that requirement.
Look man, I spent ~decade living or dying by navigation, shooting telling how long till night by my fingers, keeping the wrong folks from getting killed so that we could all kill the right ones etc. etc...
Go peddle it to somehow who'll buy it or, better yet, brush up on some basic Scholastic Philosophy, or at LEAST some rudimentary Crit-think. (here, field expedient block of training for you. Two basic questions. "So what?" and "would you please be more specific?" Master those, or at least make them a habit where applicable, and the rest grows on. You're welcome.)
Then, AFTER you've re/learned the CATHOLIC way to think, try a bit of the Trivium and Quadrivium, or just crack a basic (Catholic) science book.
Peddle your wares as you like. It's on you, but "don't start nothin', won't be nothing." keep that naked assertion, IRRATIONAL and so ANTI-CATHOLIC trash away from me and off my posts.
Just "sayin' stuff" is just that. Put some bite behind that bark or stop yapping.
out.