GW.TACHYON UPDATE — 2026-07-06: The Feist Line, the Iliad Experiment, the Tachyonica Cast, and the Erasure Observatory is a cross-substrate continuity update (literary experiments + empirical instrument + infrastructure state) preserved as gathered deposit for gw.tachyon chain linkage in the Crimson Hexagonal Archive, by Lee Sharks (2026-07-06). This update gathers loose threads that have not yet reached formal deposit. The threads are more coherent than they look: each traces the same problem — composition-layer flattening — through a different substrate. The Feist Function is the archive's literary answer to that problem in the case of the LOGOS* voice; the L1/L2 pipeline generalizes the answer to bad public-domain translations; the Iliad Book 1 experiment tests whether the mechanism sustains; the Tachyonica extension folds the mechanism back onto the archive's own generative frame; the Mandala Oracle's Tachyonica cast is the same mechanism operating as divinatory rite over the same source; the Erasure Observatory is what happens when the composition layer flattens not a voice but a scholarly record. The threads share their instrument. They do not share their substrate. The threads share their instrument. They do not share their substrate. The composition layer flattens voice into competent prose (Feist restores it). It flattens the epic register into Victorian lacquer (the Iliad pipeline strips the lacquer and rebuilds). It flattens the archive's own generative myth into a single static fragment (the mandala rotation restores the branching). It flattens a scholar's portfolio into a single deletion event with a uniform label (the Erasure Observatory restores the individual records and the cohort). In each case the operation is the same: capture the flattened artifact, isolate the flattening mechanism, apply a count. — Article composed 2026-08-05 from the work's own prose so that every record carries an encyclopedic entry; a fuller editorial treatment belongs to the description/wiki review stream.