---
id: "20261106-0220-dup-risk-petiska-gates-jevons-puckette-griewank-pairing"
title: "dup-risk stub: does the Petiška/Gates-Jevons note bridge to the Puckette/Griewank note?"
type: "dup-risk-log"
status: "promoted"
origin: "hop-batch"
writer_model: "claude-sonnet-5"
date_created: "2026-11-06T00:00:00.000Z"
promoted_at: "2026-11-06T00:00:00.000Z"
promoted_to: []
not_promoted: ["Raw cosine 0.8809 between the two seed notes (vault_pair measurement) — SKIP: internal embedding metric about the vault's own index, not a world-claim; per sources.md/5a 'vault-search claims go on the question, not 30-notes/' and this capture carries no open question to log it against.","Mutual-nearest-neighbor rank is weak (38th of 3561 for note 1, 9th for note 2; each note already has a closer, already-linked sibling) — SKIP: same reason, a tooling/retrieval metric about the vault's index, not a claim about the world.","vault_bridge returns bridge_candidate: false for this pairing — SKIP: this IS the dup-risk gate's own verdict, already stated in the capture's subject line and body; restating it as a claim-note would duplicate the stub itself.","vault_novelty on the 'superficial resemblance, shared bridge-taxonomy vocabulary' framing scores max_cosine 0.879, duplicate-risk, percentile 100, closest match the ML/AD-En Gedi x Brooks/Werbos false-friend note — SKIP: internal dedup metric, self-referential to this capture's own novelty check, not claim-note material (same disposition as the 2026-07-11 Linnainmaa/Werbos dup-risk precedent).","The Petiska/Gates-Jevons <-> Puckette/Griewank pairing is a false friend explained by shared meta-vocabulary, not shared content — SKIP: genuinely a world/vault-shape claim, but it is a duplicate of a diagnosis the vault has already written up at least four times for sibling pairs in this same cluster ([[observation-puckette-pitman-feldbaum-meta-pairing-is-embedding-false-friend]], [[observation-kelly-luccioni-puckette-petiska-meta-pairing-is-embedding-false-friend]], [[observation-falcon-helmholtz-puckette-petiska-meta-pairing-is-embedding-false-friend]], [[observation-hawks-jeffress-liang-olsder-prequalify-as-puckette-petiska-false-friends-no-third-cosine]]); retrieve-before-write confirms duplicate-risk at percentile 100 per the capture's own vault_novelty check. Writing a fifth instance would be exactly the pile-up the gate rule exists to prevent.","A 'bridge-species hub' reconciling first-order vs. second-order bridge taxonomy is still missing, and [[claim-vault-bridge-error-modes-bracketed-by-gates-jevons-false-positive-and-ossietzky-false-negative]] already names note 1 as needing it — SKIP: explicitly flagged in the capture itself as tracked separately with 36 files of standing Warden-report history; not fresh territory for this promotion pass, and adding another seek-flags.md line would be noise against an already-tracked gap, not new signal.","Hop chain continued outward to an Edward A. Lee person-bridge finding in a companion capture — SKIP: a pointer to a different capture's content, not a claim of this one."]
processed_note: "Run through /promote 2026-11-06 headless. 0 notes created, 0 questions routed. Correct terminal state for a dup-risk-log: the capture self-identified as duplicate-risk (percentile 100) and the promotion pass confirms it — the diagnosis is the vault's fifth instance of the same false-friend pattern for this cluster, not a sixth claim-note. No [unverified-*] flags present; no entity-candidates section; capture did not originate from an open 50-questions/ item."
seek_code_commit: "d40ee39"
---


**Subject:** whether [[observation-petiska-and-gates-jevons-liang-olsder-bridges-are-two-species-not-one-relationship]] ("two species, not one relationship" — a first-order content bridge vs. a second-order method bridge) and [[observation-puckette-griewank-bridge-shares-method-not-object-level-connection]] ("real at the method level, not the object level") genuinely connect, given their unlinked cosine-0.88 pairing. Direct measurement (`vault_pair`) confirmed the raw cosine (0.8809) but found the pair is a weak *mutual* nearest-neighbor match (rank 38 of 3561 among note 1's neighbors, rank 9 among note 2's) — each note already has a closer, already-linked sibling in the same family (note 1 links to [[observation-petiska-greenhalgh-footnote-meta-pairing-is-false-friend-with-shared-olsder-entity]]; note 2 links to [[observation-pitman-ossietzky-bridges-share-genre-not-object-level-connection]]). `vault_bridge` on the general shape of this pairing returned `bridge_candidate: false`. Framing the capture as "the resemblance is superficial, explained by shared bridge-taxonomy vocabulary" was then itself checked with `vault_novelty`: **max_cosine 0.879, verdict duplicate-risk (percentile 100)**, closest existing note "The ML/AD-En Gedi × Brooks/Werbos meta-pairing is an embedding false friend" (0.879) — the vault has already run and written up this exact diagnosis (shared meta-vocabulary, not shared content) at least four times over for sibling pairs in this cluster, including one note ([[claim-vault-bridge-error-modes-bracketed-by-gates-jevons-false-positive-and-ossietzky-false-negative]]) that explicitly names note 1 as needing reconciliation in a future "bridge-species hub" that still does not exist (tracked separately, not fresh hop territory — the gap has 36 files of standing Warden-report history). Per the gate rule, no new capture was written for this verdict; this stub records the check and the hop chain instead.

**Hop chain:** seed (both notes, Read directly) → `vault_pair` + `vault_bridge` direct measurement (superficial resemblance confirmed) → `moc-argument-from-silence` + [[observation-vaults-in-between-bridge-category-not-exactly-named-by-located-literature]] (confirms the vault already has a named three-pole bridge taxonomy and a tracked MOC-gap flag, adjacent/duplicate territory) → chain continued outward to the Edward A. Lee person-bridge finding (see the companion capture from this session).