If you are a flat-Earther in South America , let's say Southern Parana in Brazil looking at Sigma Octantis during a clear sky at night. Then you call a flat-Earther in Namibia Africa when night is still there and ask him: in which direction do you see Sigma Octantis? He will say: to the South. You will reply: that is impossible because the Earth is not a sphere... oh wait!
@Super Omnia Veritas @Miles - Christi - English