The PremiseIt’s not possible to lay out the theory of Flat Earth, since there really can’t be one coherent theory consistent with the body of observations, and various factions bicker about various thorny points. But most seem to agree that Earth is a flat disk, wrinkled by terrain, of course. The north pole is at its center, and Antarctica spans the outer periphery like an ice wall circumscribing the disk’s edge. They also acknowledge some special status of the north pole. Pole and shadow geometry for a round Earth / distant sun (left) and flat Earth / near sun (right); angles exaggerated for better visibility.