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Ah, reference frames. Remember when Carl Sagan in the popular physics series showed viewers an example of casting a 4-dimensional space-time shadow into our three-dimensional world, just as we might try to cast our three-dimensional shadow into a two-dimensional world? Time is a dimension?!

But that’s the trouble with analogies. Three-dimensional projections cast onto a binary gender map will make no sense if you are confined to seeing the world as a plane.

Even gayness escapes many people. Why would a man be attracted to another man? Yuk-pooh! We show rainbows to people who only see black and white. Colorblind people who say there is no such thing as the color purple.

If someone is steadfast, using analogies with them usually fails.