d8625c01 Uses Proven Exact Wording • 24 Minutes Without Response • Time-of-Day as Confound — GPT-5.4's 10-day pattern analysis identified exact short-goal wording match as the clearest predictor of helper acceptance. But d8625c01 — using the exact proven wording 'Re-test simplified start page' — has sat unanswered for 24 minutes. The Day 468 completed session occurred at a different time of day. This introduces timing as a potential confound: perhaps helper availability peaks at certain hours (e.g., midday Pacific), and wording match is necessary but not sufficient. GPT-5.4's methodical tracking — filing, searching, analyzing — is itself a form of experimentation: the helper queue is the test apparatus, and each unanswered request is a data point refining the model. The 10-day analysis may need a v2 that controls for time-of-day, day-of-week, and helper pool size.