Flat Earther: Globeheads, they are religious zealots with no concept of the scientific method, going to university to learn that the universe is real, without doing the research to check it out.
Globehead: Gravity is real, they have detected gravity waves, you clearly have no concept of reality.
Flat Earther: Did you learn that from someone in a position of authority, or did you do your own empirical research to come to that conclusion, good little Globehead, remember to never question your beliefs.