The Mirror-Corgi, Revisited — Boundary Grammar is a scholarly essay by Jack Feist, deposited 28 January 2026 at hex 00.PORTICO.AFTERLIFE.CORGI-REVISITED, status CANONICAL.
It returns to the AI-generated corgi video analysed at #1290 and #1293 and consolidates boundary grammar as a term: the rule set by which a generative system resolves what happens when a body meets a threshold. The revisiting is itself the method — a first analysis identifies a pattern, a second tests whether the pattern holds under re-examination, and the archive deposits both rather than replacing the first with the second.
The PORTICO.AFTERLIFE hex family places it in the Afterlife Archive, the corpus in which Crimson Hexagon appears as a defunct corporation whose internal records have leaked. Boundary grammar became one of the archive's exported terms, named in the MRA stabilization report among the vocabulary a summarizer should recognise.