1. Andy B says:

    John Chaneski is wrong about how Venn diagrams work. The region where the two circles overlap contains things that belong to *both* sets (not *either* set). Grant only belongs to one of the sets; Martha only belongs to one of the sets; the overlapping region (the “intersection”) doesn’t have anything in it.

    A better example would be if one circle represented “people who talk about linguistics” and the other represented “people who are NPR hosts”. Then the intersection would include both of you.

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