What is meeting fragmentation?

Meeting fragmentation is a concept in personal epistemology: Managers and makers operate on fundamentally incompatible time schedules — and most knowledge workers live in both modes without recognizing the structural conflict.

Example: A team lead blocks Tuesday morning for deep architecture work. At 9:15, a product manager drops a 30-minute sync on her calendar at 10:30. From the PM's perspective, it's a trivial request — one slot among many. From the team lead's perspective, the four-hour creative block is now two fragments of 75 and 135 minutes. The architecture work doesn't happen. Not because she's lazy, not because the meeting was unnecessary, but because two incompatible time systems collided and the manager schedule won by default.

This concept is part of Phase 42 (Time Systems) in the How to Think curriculum, which builds the epistemic infrastructure for time systems.