Concepts lifted out of the readings. Every one of them was built for somebody else’s argument, to answer somebody else’s question — so the only thing worth recording is whether it holds when applied to mine.
A concept listed here is not endorsed. It is stocked, with a note on what it was originally for.
The rule
A concept is not properly filed until it has been used — taken off the list, applied to something I actually made, and run. Either it explains something I could not name before, or it breaks under the weight.
The break is usually the more useful result. It is the only test that reliably produces a question nobody else has asked: see what happened when meaningful play was applied to Phosphor.
So each page has two halves: what the concept says, and what happened when I used it.
Status
28 concepts collected across seven papers. The ones with pages here are the ones I have actually tried.