For what I understand nothing can change their mind. In order to believe the earth is flat, you have to become uneducated, and start your education over from a new path/perspective. Meaning Physics, and science, does not matter, because those things are what we have been programmed to understand( accordingly). We must only accept what we see with our eyes, because with out science, we are incapable or fully understanding how things work. So basically we have to be reborn again, forcing ourselves to remain willfully ignorant, never to explorer the world or discover how things work. Never to question the flat earth truths, which are only visible observations.
I can't help to feel mind controlled when I think about flat earth. With science I get to look at things from many angles, weigh my evidence then come to a conclusion. But as soon as you question a flat earther. You're an idiot or a shill.