{{term}}
{{one to three sentences that define the term; no citations; every symbol named here}}
{{the figure, control or contrast that makes the idea obvious; delete the figure when prose is clearer}}
{{what the reader should see}}

{{the rest of the page, laid out as the idea needs (craft/layout.md): a worked example, the usual misreading, what it buys, its neighbours as}} {{neighbour}}{{; keep only what this concept needs}}