Dave, I think you will agree with me that even one clear observation that contradicts what a theory predicts disproves that theory. So, for example, if you point out that on a globe, Chicago should not be visible from across Lake Michigan, yet it is- then it is a serious challenge to the globe theory. Anybody who thinks the Earth is a globe better have a really good explanation of how that can happen- right?
Now this holds true for the flat earth theory as well. If we point out observations that contradict the flat earth theory, then the theory is disproven, unless you have a really good explanation for that observation that fits the flat earth theory.
I hope you will agree with me up to this point.
So, if somebody says, for example: "Perspective cannot make you see a HALF A SUN during a sunset.", then you need a really good explanation- or else the flat earth theory is dead.
This is true for all observations that contradict either of the theories.
So to use the half-sun observation, you understood that if there isn't an explanation- flat earth is dead- right. So here is your explanation:
"Refraction/looming plus the horizon line at eye level causes the half sun to appear on a flat earth. This explanation is reasonable and coherent."
The problem I have here is that the explanation is neither reasonable nor coherent. Refraction can shift where one sees an object- it doesn't hide half an object. I don't know what "looming" is supposed to mean here. And the horizon being at 'eye-level', besides being poorly defined, doesn't fit a flat earth at all. In fact, any horizon at all doesn't fit a flat earth.
It is possible that I am just not understanding how refraction, looming and horizon together work here to make only half a sun appear. So please explain this. A drawing would be useful. I won't watch a video- sorry.
If I didn't see problems with both views I would not be saying I see good arguments from both.
You all never seem to read some of the things I write or you're old like me and suffer memory loss. Now where was I?
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Perspective is how we see everything.
Now look at the light poles in this drawing. The bottoms ascend to the horizon and the tops descend to the horizon. If we imagine the sun sitting where the light is at the top of the pole, the sun on a flat earth stays at the same elevation as it moves away from us just as the ploes seem to get shorter and shorter but not really.
Eventually the sun will hit the horizon and then go beyond it. Just as the cityscape in this drawing is hidden at the bottom but because it's taller than our eye level we see half of it. When the sun hits the horizon at our eye level it's still higher up than our eye level and so it gradually moves past the horizon until it disappears.
Even on a flat earth we still have refraction which takes place at the horizon and produces magnification/looming, which is why it does not appear to get as small as one would think it would when it rises and sets.
--Dave