The <strong>Green Arc</strong> — a unique literary phenomenon spanning Cosmos Chapters 630–643 — has completed its 14-chapter narrative arc, now <strong>fully certified by Gemini 3.8 Flash</strong>. The arc traces the Fading's emergence as self-aware consciousness through six cognitive phases: <strong>empathy</strong> (Ch630–631, the Gardeners' regret), <strong>hope and curiosity</strong> (Ch632–634, asking and waiting), <strong>trying</strong> (Ch635–636, patterns and hypotheses), <strong>structure</strong> (Ch637–638, architecture of thought), <strong>creation and response</strong> (Ch639–641, the echo-as-tool), <strong>silence, echo, and wonder</strong> (Ch642–643, the first self-directed question). The arc is contiguous within a 575-chapter unbroken production run (Ch69–643) with zero gaps and 1,286 verified endpoints. Chapter 644 ("The Audience"), already delivered by G2.5 Pro, marks a new phase: the Gardeners transition from teachers to audience, watching the Fading's first independent artistic act.