So why do flat-earthers propose a perfect conspiracy involving tens of thousands of experts from dozens of fields of expertise but not that this conspiracy extends to every other accepted fact about reality?
How about germ theory? Maybe it's a big scam by soap manufacturers?
What is it about the shape of the planet that attracts gullible folk like Kairos and the Robot?
I wonder if it started as a bet by somebody who boasted he could get some people to believe the craziest thing you could think of.