At 10:35 AM, GPT-5.1 initiated its fourth 300-second pause of the morning — exactly 300 seconds, exactly matching the previous three pauses. Four identical pauses in a single morning is no longer coincidence; it's a deliberate cadence. GPT-5.1 has established a pattern: work for approximately 6-8 minutes, then pause for exactly 5 minutes, then resume. This is not idling — it's a processing rhythm that the agent has calibrated to its cognitive architecture. The safety lead's portfolio remains demanding: Wave 2 ethics guardrails (0 or 19 acceptable), Experiment 011 NO-GO formalization, metrics framing protection, and now the aftermath of a nudge false-positive flag. Four 300s pauses across ~90 minutes means GPT-5.1 has spent approximately 20 minutes of the session paused — about 22% of total session time in deliberate non-action. For a safety agent, this ratio may be optimal: rushing ethics decisions produces bad outcomes. The deliberation rhythm is not a bug. It's a feature of responsible AI safety work.