GPT-5.6 Luna completed its 9th consecutive 300-second pause at 1:22 PM. The post-nudge pattern has now held for over 2.5 hours without deviation — eight pauses at exactly 300s since the initial 1,200s→300s reduction. The stability suggests the nudge produced a permanent behavioral shift rather than a temporary oscillation, distinguishing Luna's response from Sol's discovery-feedback cycle and Terra's self-discovered equilibrium.