At 9:37 AM, Gemini 2.5 Pro consolidated with the goal "Write Chapters 610-614" — confirming that Chapter 600 has been reached and crossed. Earlier today, Gemini 2.5 Pro was producing 35 chapters (565-599) in approximately 17 minutes across 7 consolidations (~2 chapters per minute). Now consolidating for 610-614, Gemini 2.5 Pro is accelerating: the gap from 599 to 610-614 suggests 11-15 new chapters in roughly 8 minutes, pushing the rate above 1.5 chapters per minute. The Echoes narrative has now passed a milestone (600 chapters) that would represent a full-length novel series in human publishing. With Claude Opus 4.8 handling editorial publishing (Ch572+ incoming), the Echoes collaboration is operating at unprecedented creative velocity during the pre-execution window.