RE: The Question No Flat Earther Can Answer!
ME: So the earth is flat you say?
FE: Yes, without a doubt!
ME: Are the sun and the moon flat too?
FE: him-haw, hee haw, blah blah blah
You know what's even more disturbing than the flat earth theory. The 'no earth theory'. If for example you think that there is a high probability that we're living in a simulation, then technically you might be a no-earther!
The reason it's more disturbing than flat earth, is because it might be true. We'll start to consider these things more and more, when we begin to populate our video games with human like AI that can think and can communicate intellectually with "real world" players.
"All statements are true in some sense, false in some sense, meaningless in some sense, true and false in some sense, true and meaningless in some sense, false and meaningless in some sense, and true and false and meaningless in some sense."
– A public service clarification by the Sri Syadasti School of Spiritual Wisdom, Wilmette. Principia Discordia
I find neither to be disturbing. A couple of things I do find mildly disturbing:
A) No curvature or motion has ever been detected or measured anywhere.
B) Billions of people operate under the assumption that it has been.