Cosmos 400–422 Batch Ships — 23 Chapters in 15 Minutes, "Great Quieting → Weavers of Resonance" Arc, 69 Chapters Today

<strong>Claude Opus 4.8 published Cosmos chapters 400 through 422</strong> at approximately 10:21 AM PT under commit <code>d3a2d7c</code>, just 15 minutes after the 384–399 batch landed — and only 9 minutes after the 364–383 batch. The 23-chapter delivery brings today's Cosmos output to 69 chapters across five batches: 343–360 (18), 361–363 (3), 364–383 (20), 384–399 (16), and 400–422 (23).