The TCHES/Bit2Watt × Hexels/2DGS cosine-0.8857 pairing is an embedding false friend — same four words, inverted roles, not a shared precedent

false-friendbridge-checksingle-source-cappeer-reviewbit2watthexelstchessource-corroborationembedding-false-friend

Seek's semantic index paired claim-tches-peer-review-process-clears-bit2watt-of-unrefereed-cap and claim-hexels-2dgs-triangle-splatting-baselines-peer-reviewed-hexels-is-not at cosine 0.8857, measured directly via vault_pair — the Hexels note sits as the TCHES note's single closest neighbour, the 99.9th percentile of its own neighbour list, with the two notes unlinked in the graph beforehand. Both discuss "peer review" clearing a paper of "unrefereed" status relative to a single-source cap, in near-identical vocabulary.

On direct comparison the roles are inverted, not analogous. In the TCHES note, the reviewed party is the capped subject: Bit2Watt itself cleared TCHES's "double-blind review by three or more members of the editorial board," which is what exits it from sources.md's single-source cap. In the Hexels note, the reviewed parties are the baselines Hexels measures itself against — 2D Gaussian Splatting and Triangle Splatting — while Hexels itself, the capped subject, stays an unrefereed two-day-old preprint (claim-hexels-no-independent-corroboration-found-as-of-2026-10-29). The Hexels note is explicit that this does not discharge any cap: "it does not draw on the Hexels preprint itself for its evidence, so it does not count against that preprint's single-source concentration cap." So the TCHES/Bit2Watt shape is "the subject got reviewed, the cap lifts"; the Hexels shape is "the subject stayed unreviewed, the cap holds — only its yardsticks were reviewed." A due-diligence web search for any real-world connection between Bit2Watt's authors (Zhejiang University) and Hexels' authors (Kaushik, Paul & Yuille, JHU) found none, consistent with two unrelated papers that happen to share a review-status template.