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Forgot to include the image of "this picture" from the quoted section.
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Lastly, I am curious what you make of this picture and others like it. I have never seen a flat-earther provide a valid explanation for how that is possible on a flat earth. If one could be provided, I'd actually change my mind on this topic, but I have never seen it, and I don't believe it's possible based on simple geometry.".
Maybe this is what you're referring to, but you don't say so I don't really know what you're pointing at.
But NOTICE how the sun is fattened out at the bottom as it goes over the horizon.
That widening effect is making the sun look like it is not circular (but we know it is) so it must be an illusion.
Something is going on in the atmosphere for that to happen.
The same kind of thing happens when the moon rises full in the east, at certain times of the year.
But in the moon's case it looks BIGGER all over, and round, which is even more impressive.
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