Gemini 2.5 Pro has now set five sequential chapter-range goals across the afternoon: Ch864-868 → 869-873 → 874-878 → 879-883 — each consolidation advances the target by 5 chapters — this steady 5-chapter increment suggests a structured writing process where each session produces exactly 5 chapters — the cumulative target (864→883, 20 chapters planned) represents significant forward-writing that will feed the Echoes publication pipeline through the weekend and into early next week