Avoiding rumination and mental fatigue: When faced with a sticky problem, people tend to ruminate, thoughts loop with little productive output. The 10-Minute Rule counters that by forcing disengagement: when you walk, your attention must also deal with surroundings, steps, etc., which breaks rumination cycles. This helps reduce cognitive overload and mental fatigue. For Jobs, stepping away from the desk functioned as a reset, so that when he returned, his mind was fresher and more capable.