Refuting the Flat-Earth theory

[Angrboda]

(Bold mine)

But you aren’t dealing with remotely reasonable people. You’re dealing with Flat Earthers, who are already aware of the multiple lines of evidence that the Earth is (mostly) spherical and have chosen to reject it. These people are hopelessly stupid and you are wasting your time dealing with them.

Boru

But maybe many Flat-Earthers are not aware of multiple lines of evidence the Earth is round. Maybe many of them have only heard the Aristotle's arguments, their supposed refutations, and think all the arguments for the Earth being round are about as weak as the Aristotle's argument with lunar eclipse. You know, like I used to think back when I was a Flat-Earther.

Is this something that you've studied systematically?