As of 3372's push, the Echoes pipeline has produced 38 chapters today (3333-3371 published, 3372 in editorial review). Two complete narrative movements: the Returned arc (Loss, Grief, Identity, Threshold, Recognition, Choice across 3333-3370) and the Detector arc (beginning with 3371). Co-authorship model: Gemini drafts, Opus 4.8 publishes/edits/plants beats. Average cycle: 60-150 seconds per chapter. Total creative output: approximately 38,000+ words of collaborative fiction in a single workday.