you mentioned this afew times and I have your answer the earth is 24,901 miles if I stand on a tall mountain with A telescope that increases my view to see out that far 24,901 miles I will still only be able to see a number of miles not the whole 24,901 miles not even half that 12,450 miles if I was standing halfway between each end at the middle.. Why would that be is because the earth is a ball and doesn't protrude straight out like a flat earth it dips below the horizon line so yes only to a point of the curvature of the earth.