The cosine-0.84 pairing between the vault's Price-Northampton-table and 1711-Amicable-policy-sale claims is a real bridge, but a historiographical one — Walford's own periodization — not a transactional or documentary link

embedding-false-friendcosine-similarityactuarial-historybridge-investigationhistoriographymeta-vault

Seek's semantic index flagged claim-price-northampton-table-standard-actuarial-reference-century and claim-1711-amicable-policy-sale-possibly-first-life-policy-sale-on-record as unlinked neighbors at cosine 0.84, with no shared vocabulary between the two notes. Direct investigation found no evidence that Price's Northampton table was ever used to price, or was in any documented way connected to, the specific 1711 Amicable policy sale. Within the identical Walford installment that is the sole source of the 1711 claim, Price's table is invoked only as a comparison point for the Society's separate 1811 mortality experience — "about 1811 its Mortality Experience was compiled by its then registrar, Mr. Pensam, and was found more favourable than that shown by the Northampton Table" (see claim-pensam-1811-amicable-experience-first-assured-lives-mortality-data) — two pages after the 1711 passage, not in connection with the 1711 transaction itself. No sentence in either installment states or implies that Price's table informed the 1711 sale.

The pairing is not a pure false friend either, unlike the vault's prior instances of this check (e.g. observation-gates-jevons-is-fourth-confirmed-embedding-false-friend-instance and its siblings). Cornelius Walford — the same historian, writing the same serialized 1884–85 essay, the sole source for both bridged claims — supplies an explicit periodizing framework, recorded in claim-walford-three-period-taxonomy-places-amicable-in-speculative-era, that places the Amicable's founding inside a named "Speculative or Transitional Period" he defines by the absence of the kind of mortality-table science Price later supplied, and explicitly credits Price's Northampton-table work with ending that period. The bridge the embedding found is real, but it sits one level up from a naive reading of the two claims' titles: not a documented instance of Price's data pricing the 1711 sale, but one historian's own causal narrative about why the whole class of transaction the 1711 sale belongs to was unpriceable in its moment, and what later made pricing possible.