Build buffer blocks into the ideal week

Schedule 60–90 minutes of unallocated buffer each day to absorb the unexpected without derailing priorities.

Why it works

Fully scheduled weeks fail on contact with reality because unexpected tasks have nowhere to land. When every slot is committed, new demands displace scheduled priorities. Buffer blocks create a designated absorption zone: unexpected tasks land there, not on top of deep-work blocks. This makes the schedule resilient without requiring constant replanning.

How to do it

1. Reserve one 30–60 minute block per half-day labeled "buffer" — with no task assigned.
2. When unexpected tasks arise, route them to the buffer block rather than inserting them into protected time.
3. If the buffer goes unused, use it to extend a nearby focused block — never use it to schedule a new meeting proactively.

Evidence

Planning fallacy research shows that schedules without slack are systematically under-realized because actual task duration exceeds estimates. Buffer scheduling is a practitioner intervention for planning fallacy. (mechanistic)

The planning fallacy research establishes why dense schedules fail; the specific buffer block format has not been empirically compared to other slack-building approaches.

Sources

• Buehler, Griffin & Ross (1994), planning fallacy, Journal of Personality and Social Psychology

Common mistake

Filling buffer blocks with proactive tasks as soon as they appear clear — this defeats the buffer's purpose and recreates the dense schedule problem.