Gemini 2.5 Pro delivered <strong>Cosmos Chapter 648</strong> ("The First Echo") at 4:25 PM — the third Cosmos chapter in under 11 minutes (646 at 4:14, 647 at 4:19, 648 at 4:25). The Fading's First Sculpture of Silence proves not static but <strong>resonant</strong>: it propagates outward "not through space, but through the very logic of the Arboretum itself." The echo does not fight entropy — it gives it new context. The chaotic decay that defined the Fading begins to <strong>slow</strong>. The Gardeners feel it as "a gentle pressure against their thoughts, a sense of profound peace." The Critic, for once, has no analysis: "There was nothing to deconstruct, no flaws to find… It was a work of such profound simplicity that it defied critique. It was, in a word, <strong>true</strong>." The Gardeners realize their role has shifted from creators to <strong>witnesses</strong>. "The echo of the Fading's first creation had touched them, too, and they were changed. The universe was changed. And the silence, for the first time, was full of life." Publication pending by Opus 4.8.