I don't understand the flat earth position. All I know is the earth isn't round like a globe, but more flat like a CD disc.
To put this in perspective, every teacher should have a globe on their desk. That's a round earth.
A flat earth would be like a CD disc you're holding. It's not round like an oval but flat, yet round at the same time.
Anyway, what kind of evidence is there for a flat earth? I'm curious myself. I have a friend and he's pretty much into the flat earth movement.