so you employ a fallacy to cover your excuses, but OK, I'll bite
in relation to this question, the RE model says it is possible because as the sun shines light omnidirectionally, light will hit the 'side' of the earth facing the sun. As roughly 50% of the surface is exposed in such a manner, it creates an even line where the curvature of the earth is no longer facing the sun.
now, as I have answered your question, let's get back to mine.