"In other words, I not only allow spontaneity in my schedule; I encourage it. Joseph's critique is driven by the mistaken idea that the goal of a schedule is to force your behavior into a rigid plan. This type of scheduling, however, isn't about constraint--it's instead about thoughtfulness. It's a simple habit that forces you to continually take a moment throughout your day and ask: "What makes sense for me to do with the time that remains?" It's the habit of asking that returns results, not your unyielding fidelity to the answer."