Seales/Mocella is a third pole on the vault's multiple-discovery axis: acknowledged, citation-based convergence — never independent, never forgotten

observation-parker-and-labview-max-are-opposite-poles-of-multiple-discovery names two poles on the vault's Merton-vs-Chandler multiple-discovery axis: Parker's 1985 backpropagation rediscovery, where independence was real but credit was erased by an uncitable container ("real independence, forgotten"), and LabVIEW/Max, where credit survived intact but the underlying independence dissolves on inspection ("apparent independence, over-remembered").

Seales and Mocella's concurrent work on reading carbonized Herculaneum papyri fits neither pole. The two groups were never independent — Seales's 2016 paper names and characterizes Mocella's rival phase-contrast-tomography claim directly, in print — and nothing was later forgotten or erased; the citation sits in the primary record from the start. This is acknowledged, citation-based convergence: two teams working the same problem with different methods, reading each other in real time. It is a third position the axis needs a name for, not a variant of either existing pole.

This also completes the diagnosis in observation-ml-ad-en-gedi-cosine-pairing-is-embedding-false-friend, which established that the vault's flagged 0.75-cosine pairing between claim-ml-and-ad-communities-mutually-unaware and claim-virtual-unwrapping-first-proved-on-2015-en-gedi-scroll was a false friend without fully naming what virtual unwrapping's real convergence structure is. It is this: acknowledged convergence, the third pole, not an absence of a multiple-discovery story at all.