It does? From ground level? So when I'm on the beach and see a boat dip below the horizon, that boat is tens of thousands of miles away from me?
Either I'm missing something here, or that makes no sense.
I never count out the possibility that I'm missing something, though, just so you know. What am I missing here?
I'm willing to give you perspective, because not being an expert I can't really dispute it, but I think this whole "air blockage" thing is a hole in flat earth theory.