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did you ever take a plane ?!?! looked outside the window.. personally!??!?!? di you ever go to highest mountain?!?!? look on horizon?!?!?

Yes I have been a plane and saw a Flat horizon that rises to eye level, although a lot of plane windows do create a slight distortion. The higher you go the flatter the horizon looks, the farther you can see and the horizon again rises to eye level, so are you just making this stuff up?