The Mirror-Corgi: Notes on What We Call AI Hallucination is a scholarly essay by Jack Feist, deposited 28 January 2026 at hex 00.PORTICO.AFTERLIFE.CORGI-ESSAY, status CANONICAL. Its target is the word hallucination itself. The essay argues from frame-by-frame evidence that what gets called hallucination in generative video is better described as consistent rule-following under conditions the rules were not built for — the system is not seeing things that are not there but resolving boundaries by a grammar that produces impossibilities. That reframing is the same move the archive makes at #1336, which requests reclassification of a model's output from HALLUCINATION to SCHEMA COMPLETION. Between them the two documents state the archive's central wager twice, once in generative video and once in text: a system completing a pattern is doing something other than fabricating, and the difference determines what the whole project is.