I just did a PowerPoint presentation about how the earth's curvature works to my flat earther father. I never thought I would say that.
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@Trillenial With a $50 telescope you can see other planets, all of them are clearly circular, what does he say about that? Its just a coincidence that they all happen to be showing their flat face to the earth?
@comphys He doesn't believe other planets are real, I know this sounds ridiculous but he only believes what is in the bible.