Brothas, sometimes
These dude’s are old, stubborn and stuck in their ways. Nothing you or I say to them will ever get them to admit that they’re wrong.
They could be taken up in a space shuttle, and see with their own eyes that the Earth is round. And then they’ll accuse NASA of using tv’s instead of windows that they’re looking out of to project images of a round Earth.
There’s no amount of proof that anyone could provide to prove them wrong, in their minds.
Oh the irony!