What you can in fact see in the sky
2023-10-17 11:09 Flat-earthers show great ignorance about the movements of celestial bodies.  It is bad enough to believe that perspective could explain the sun rising and setting.
How far can you see?
2023-10-11 10:36 Flat-earthers like to argue that one can see things further away than one would on a round Earth.  The problem is usually faulty calculations of what one would be able to see.