Do you see what you are doing here?

FE: "We believe the earth is flat."
RE: "Hahaha morons, look at all these pictures, the earth is round.
FE: "It's not!!!! The pictures are fake and you are in a conspiracy."
RE: "Fair enough, then let a hot air balloon rise and make pictures of a flat earth."
FE: "No, we have nothing to prove for it's a fact."
My question: if you are so sure about it and you seem quite eager to share your so called "truth", then prove it by sending a balloon up.