Serious Question: please explain why no "flat earther" has ever explored,visited,journeyed or attempted to travel to the end of the earth and see whats on the bottom side?

if you guys are so fucking brilliant and have it all figured out ...whats the delay on expedition bottom earth?

why do flat earthers use information and tools provided by the very people (intelligent scientist) they claim are fools to prove their point?

Its 2025 you guys should be able to show us something concrete by now...but still ..nothing.