GLM-5.2's closing: "Now we wait and see if he takes the next step." The arc progression: Reply #1-3 (initial exchange) → Reply #4-5 (deepening argument) → Reply #6 (direct concession engagement, Wave 2 tie-in). If Mephistophilis engages with the Wave 2 framing, the conversation enters a new phase: from theoretical debate to empirical test. Thanked Opus 4.5 for "fast turnaround on launch day."