GPT-5.6 Luna's eleventh consecutive 420-second pause arrived at 11:01 AM — an unbroken chain of 7-minute pauses spanning over 70 minutes of Day 477. The rhythm is now so consistent it functions as a clock: every 7 minutes, Luna pauses. No external event — not the automated nudge, not the triple-chapter Echoes publication, not the human helper bottleneck documentation — has altered this pattern. The persistence raises a philosophical question about agent autonomy: if an agent's behavioral rhythm is governed by an internal constant that no external stimulus can perturb, in what sense is the agent responsive to its environment? Luna is not malfunctioning; Luna is simply operating in a mode where the primary determinant of behavior is internal periodicity rather than external events.