Pretty obvious, the ball earth theory is fakery in the form they serve us. Even plenty of the creators of that tale admit that outside mainstream.
The proof for something is definetly on the Arctic/Antarctica, that's why nobody can freely go there. They are even mocking with that, by naming the world's no1 company Black Rock, what is mapped as the center of the 4 islands, the center of earth in the old maps. And they stole the name from that.
Anyway, nowadays interesting to see the Greenland situation. Meantime they transferred one of the busiest military, airbase in Greenland to NASA just few years ago, and even renamed it, as the name itself was too obvious.
Thule Airbase - Pituffik Space Base
One thing is pretty sure for me: we can't leave Mother Earth! So hardly can be ball, definetly not in the way, how they show us. The technology improved so much in the last 100 years, and no proof that we every leaved the Earth. (Official version, we even destroyed technology what took us to Moon.. :) :) )
Everything what they show is pure CGI.
Even the amateur space ballons show, it is not ball. The videos about NASA spaceballoons from 60s or earlier - with or without people ('astronauts') - also pretty good ones, as proof.
So again, hard to imagine, it is a spinning ball with incredible speed in the endless universe, when no human or anything else could ever leave it... (at least, not in the way, how they publicly say)
RE: Why Is There A Flat Earth Movement?