What is commitment stacking?

Commitment stacking is a concept in personal epistemology: Link new commitments to existing reliable behaviors.

Example: You have meditated every morning for two years. It is the most reliable behavior in your life — you do it without thinking, without deciding, without negotiating with yourself. Now you want to start journaling. Instead of creating a new standalone commitment ('I will journal every day'), you stack the new commitment onto the existing one: 'After I finish meditating, I will open my notebook and write three sentences.' The meditation is already a solved problem — automatic, effortless, locked in. By chaining the journal commitment to it, you borrow the older behavior's momentum. You are not starting from zero. You are drafting behind something that already works.

This concept is part of Phase 34 (Commitment Architecture) in the How to Think curriculum, which builds the epistemic infrastructure for commitment architecture.