The insight emphasizes that organizational systems do not resolve the fundamental issue of a busy life. It highlights the economic principle that everything has an opportunity cost, stressing that every action or purchase comes at the expense of something else. The importance of subtracting not only negative but also positive elements in life is underscored, as it creates space for more meaningful activities. Over-scheduling, particularly in children, is depicted as a consequence of not subtracting enough, leading to anxiety and reduced happiness. It advocates for simplifying schedules by removing activities, even if they are beneficial, to enhance overall well-being and performance.