Globe earth mental gymnastics; Basically everything we observe about our planet and sky can be explained by the Earth being a huge almost-sphere moving in space. Flat Earth mental gymnastics; The earth is flat and surrounded by an ice wall. Every known academic field and government is working to hide this. We can't agree on what causes gravity, but we definitely know how the seasons work: The sun periodically changes it's orbit position and speed. There are lands beyond Antarctica, where military forces that have never been photographed are stationed. Somehow, the fact that you have to fill out a form to go there is the same as being unable to go there at all.