A Schedule Needs Room for Curveballs
A schedule can fail by being too loose. It can also fail by being too exact.
When every minute is already assigned, the first surprise turns the rest of the day into recovery. A call runs long. Traffic changes. A child needs attention. A task reveals more work than expected.
The problem is not that planning was foolish. The plan simply assumed a level of predictability that life did not promise.
Slack is therefore not always inefficiency. It can be part of the design.
A workable schedule has enough structure to organize commitments and enough unallocated capacity to absorb ordinary variation. This is different from leaving everything vague. The question is not whether to plan. It is whether the plan has room for reality to be slightly different from the forecast.
Curveballs do not mean the game is over. A good schedule knows some pitches will not arrive where expected.