Believing in "Flat Earth" or not believing, changes nothing. People love to argue about this point because it emphasizes their intellectual abilites. But in all practicality, it does nothing to believe.

In believing in "Flat Earth"

• You will still pay taxes
• You will still go to work
• You will still do your groceries
• You will still have to visit your parents
• You will still have to mow your lawn

In NOT believing in "Flat Earth"

• You will still pay taxes
• You will still go to work
• You will still do your groceries
• You will still have to visit your parents
• You will still have to mow your lawn

You say, "OH, but NOW you KNOW the TRUTH!!!"...so? "knowing" means nothing unless you're actually doing something about it. And "Doing something about it" is not going online and showing people the pseudo science to prove your theory. Doing something means, go fund your own exploration and go to the ends of the earth...and come back with evidence. Or build your own rocket with a camera and send it to space and let it sit there for 24 hours and capture the rotation of the earth...or lack of rotation.