What is cognitive granularity?

Cognitive granularity is a concept in personal epistemology: Every schema captures some details and loses others — resolution is a design choice.

Example: A project manager's schema for 'team health' tracks velocity, sprint completion, and standup attendance. It captures throughput perfectly. But it cannot see that the senior engineer is burned out, the junior engineer is afraid to ask questions, and the designer has mentally quit. The schema has resolution for productivity but not for morale. The data looks green while the team is falling apart.

This concept is part of Phase 11 (Schema Foundations) in the How to Think curriculum, which builds the epistemic infrastructure for schema foundations.