Flat earth is not theory. It's just what we see and observe. I don't need to prove it's flat, I need to test that it's a globe. And so I did that. Using basic math, observation, reasoning and used that to conclude myself that the earth is not a globe. I don't read or believe some idiots rambling about flat earth nonsense.
I test the globe theory and it easy to disprove in dozens of ways. No reason to bother believing anything or anyone but myself