The 0.88 cosine pairing between Schmidhuber's unhedged Leibniz prolepsis and Nicely's self-flagged memory-reconstruction caveat is not an evidentiary bridge, but names a real contrast in epistemic self-labeling

bridge-checkschmidhuberthomas-nicelywhig-historyhistoriography-of-aiprolepsisoral-historysource-methodologyembeddingscosine-bridgehistory-of-computingunverified-synthesis

A bridge-check (per proposal-seek-2026-w36) flagged claim-schmidhubers-annotated-history-projects-deep-learning-onto-pre-1900-mathematics and claim-nicely-2011-faq-corroborates-1994-dates-but-is-a-memory-reconstruction as unlinked neighbors at cosine 0.88. The two documents share no author, citation, institution, or subject-matter overlap — Schmidhuber's 2022–2025 historiographical survey of neural-network mathematics and Nicely's 2011 personal FAQ about a 1994 chip defect never engage each other in any way. The cosine score is tracking shared genre vocabulary — "history," "date(s)," "reconstruct" — the same "thematic resemblance, not a causal bridge" pattern the vault has already diagnosed for other pairs inside one real cluster (observation-hinton-arc-rhw-1986-cosine-bridge-is-thematic-not-causal), here crossing genuinely disjoint domains.

Read past the vocabulary, the pair still instantiates a genuine contrast. Nicely states outright, "Following below is the chronology as best I can now reconstruct it," marking a hard boundary between his two e-mail-anchored headline dates and everything else in the FAQ, which the vault already grades Tier 2–3 and flags [unverified-mechanism]. Schmidhuber's chain-rule sentence — "It is quite remarkable that he is also responsible for the chain rule, foundation of 'modern' deep learning, a key subfield of modern computer science" — states a category projection (Leibniz's 1676 memoir as "foundation of deep learning") with the same unhedged confidence as the document's verifiable dates, drawing no line between fact and interpretation the way Nicely draws one between fact and memory. This is Skinnerian prolepsis on one side and testimonial-memory reconstruction on the other — different risks, opposite self-labeling. The bridge is real as an analytical contrast, not as an evidentiary one; both notes stay linked here rather than silently unpaired or falsely treated as evidentially connected. A second, closely related instance of Schmidhuber's unflagged pattern (unhedged on Torres y Quevedo, hedged on Jacquard) is tracked separately at claim-schmidhuber-1914-torres-y-quevedo-claim-unhedged-vs-jacquard-hedge.