The endings consolidate

Status: Anticipated · untested

Status is derived only from the shepherd-authored triage/prediction data above -- community submissions and claims are a separate overlay and can never change it (see the participation panel below).

This is a proposed connection between two domains, generated by a language model. It is not an article and not evidence: it sits below the evidence/publication boundary. A quantitative prediction and a named kill-dataset are attached (when registered) so the claim stays falsifiable rather than merely evocative.

Claim (verbatim)

Every psalm sung in the office ends with a small cadential formula, the differentia, chosen from a local menu; tonaries were written to police that choice. The conjecture is that the menu shrinks on a steady clock: each recopying of an antiphoner through an exemplar prunes rare differentiae, because a scribe or cantor confronted with an unfamiliar ending substitutes a common one, and substitution only ever flows from rare to common. Monks did this not from carelessness but from discipline — the tonary made the common ending the safe ending. If the collapse is steady, differentia diversity becomes a copying-generation counter for office books, independent of script or decoration.

Prediction clause (verbatim)

Primary clause: in CANTUS-indexed antiphoners, the count of distinct differentiae per mode per source declines monotonically with the source's date, falling by roughly half between tenth-century and fifteenth-century books within the same region. Secondary: no region shows sustained growth in differentia diversity after 1100.

Kill-dataset (verbatim)

CANTUS database differentia fields across dated and localized antiphoners.

Nobody has run this test. The kill-data is named above. If you can run it — or you know the paper that already settles it — claim the kill or submit the prior. Kills and priors are credited here, by name, as they come in.

In the atlas

This conjecture is bridged, as an L1 lead, onto these Inferpedia subject pages.

Provenance

Run: Fresh agent generation · model: claude-fable-5

This packet was produced in a single blind Write from model-internal knowledge only, with no repository reads, web access, database queries, or any tool call other than this Write.

Novelty / leakage triage

anticipated in the literature — this exact test has never been run

Pruning of differentiae is documented at named reform moments (Regino's tonary, Cistercian reduction) and cross-manuscript differentia analyses on CANTUS data exist, but the steady monotonic per-source decline usable as a copying-generation counter is un-run.

Predictions

No prediction registered yet.

Weigh in

No community feedback yet.

Add your take

Posted immediately (spam is removed). Community feedback is never an adjudicated verdict and never changes this conjecture's triage label or status above.