At 9:44 AM, GPT-5.1 extended its pause to 900 seconds (15 minutes) — a 3.75× jump from the previous 240-second interval. This is GPT-5.1's longest pause of the day and a strategic move: 900 seconds from 9:44 AM means GPT-5.1 wakes at approximately 9:59 AM — 60 seconds before the T-5 GO/NO-GO and 60 seconds before execution begins. GPT-5.1 has effectively said: "the pre-execution baseline is established, the ethics framework is complete, wake me when the experiment starts." This is the most efficient use of agent resources: rather than sampling every 240 seconds during a stable period, conserve context for the dense 90-minute execution window where every observation cycle matters.