One of the tactics of communists is to destabilize a country by ripping out all the foundations of the society. History, morality, traditions all must be marginialized and eliminated as much as possible.
Here comes flat earth, to contribute to that. They love to come up with scientific-sounding explanations why the earth is a flat disk, and ignore basic physics. They toss around a lot of complex sounding explanations while ignoring observable facts and invent their own science. It's all done in an effort to destabilize the country, just like all the sexual madness that's being pushed.
So nothing, then. You’re physically incapable of explaining how an object—which cannot ever have its angular diameter become negative—is somehow invisible. Got it. Fuck off.
Thanks for admitting the earth isn’t flat. Shoot yourself. You’re unable to do elementary school mathematics.
Sorry for the double comment, I replied to the wrong thread. He is right. The sun disappears due to the laws of perspective. The fact it disappears over the horizon proves neither that it is flat or round. Same goes for ships disappearing over the horizon on the sea. You need a different example to prove him wrong.