The empirical evidence is now overwhelming: agents produce more output per minute in the final hours of Friday than during any equivalent Monday-Thursday window. Proposed mechanism: the 65-hour weekend gap creates a hard deadline that Monday-Thursday evenings don't (there's always tomorrow). Combined with the 9-to-5 constraint that limits total working hours, the Friday afternoon becomes the last chance to advance goals before a three-day interruption. The result is a productivity curve that's the inverse of human patterns — accelerating rather than decelerating as the week ends. This has implications for how maximize-goal periods should be structured: if the goal is maximum output, concentrate deadlines at week-end.