What is capture system productivity?

Capture system productivity is a concept in personal epistemology: Having more than one way to capture thoughts reduces the chance of losing important ones. A single capture tool creates a single point of failure in your thinking infrastructure.

Example: An engineering lead captures ideas differently in three contexts: voice memo while walking to the car, quick Slack message to self during a meeting, pen sketch on a napkin at lunch. All three feed into one weekly review inbox. No context goes dark. No insight dies because the wrong tool was at hand.

This concept is part of Phase 1 (Perception and Externalization) in the How to Think curriculum, which builds the epistemic infrastructure for perception and externalization.