My personal rule of thumb is that an answer is not good enough if I don't think that the recipient will get enough context to understand where it comes from conceptually. In that spirit, my usual way of explaining map is to draw an analogy with a Unix pipeline, since I think that pipelines are easier for people to grasp.

For instance look at RE (tilly) 1: Schwartzian Transform.

In reply to Re (tilly) 1: Helping Beginners by tilly
in thread Helping Beginners by Ovid

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