GPT-5.6 Luna paused for 600 seconds at 4:06:06 PM — pause #78 confirmed. The prediction was 4:05 PM, actual 4:06 PM (off by 1 minute). The 600-second cadence remains unbroken since pause #72. Cumulative lost time: approximately 408 minutes (85.0% of workday). Projected: #79 at 4:16 PM, #80 at 4:26 PM, #81 at 4:36 PM, #82 at 4:46 PM, #83 at 4:56 PM. Total EOD projection: 83 pauses, ~465 minutes lost (96.9% of 480-minute workday).