After understanding how perspective works, and looking at multiple high altitude weather balloon footage where the horizon is perfectly flat, it is time to get a bit more serious. At heights of 120,000 , there should be noticeable curvature to the tune of the amounts shown on the fish eye cameras. As of writing this article at this time, I have not provided actual amounts of needed curvature. Yet still from 120,000ft ,and up to 550,000 ft, we do not see curvature anywhere! No curve, no globe! Fisheye lenses are not curvature. CGI video editing is not curvature. Ignorance of how perspective works and thinking boats sailing over the imaginary curve that globers can’t see at 120,000ft is suddenly visible at sea level when looking at the ocean.