Flat Earth theory as faulty with anomalies, and incorrect. As you mentioned with the 'hallway' things get smaller with distance. With Flat Earth theory the Sun (and Moon) should get smaller and smaller till it vanishes in the distance. The Sun doesn't; it disappears below the horizon at the same size it was when directly overhead. That's only possible with a spherical Earth. And, if the Moon and "Sun were the same size the Moon would appear much larger than the Sun during a solar eclipse and would block out the solar corona; that doesn't happen because the Sun is tremendously larger than the Moon and tremendously farther from Earth than the moon and only appears the same size due to perspective. Try to objectively analyze real data and concrete scientific and mathematical evidence for a spherical Earth at some point and you might learn something.