Actually not trolling, although I wouldn't blame you for thinking that. I genuinely do believe the flat earth theory to be more reasonable, and better grounded in evidence, than the round earth theory. Of course, it's an unpopular opinion, so I completely understand how and why people wouldn't take it seriously (I didn't at first, either). It's also not the most important thing there is to know, so I try not to make a big deal of convincing other people unless they show genuine curiosity.