A calendar without empty space has no room for surprise or thought.

Gaps are not waste. They are where thinking happens, where unexpected things get absorbed, and where the good idea arrives that no scheduled hour would have produced. A calendar packed edge to edge is a calendar that can only execute, never reconsider, and one delay from falling apart.

Leave two hours unbooked this week, on purpose, and do not fill them when something asks. What arrives in that space is usually worth more than what would have.