Definition
Drift is the lateral slide off the chosen line. Sedimentation is the slow erosion of the tools and rituals that keep the line. Both are invisible day to day. Both end in you waking up far from where they meant to be.
Origin
A paired systems metaphor: drift (lateral slide off the line) and sedimentation (tools abandoned on the shoulder while forward motion continues). Wood’s habit diary work supplies the mechanism — stable-context behaviours run with attention elsewhere until the supporting rituals disappear.
Mechanism
- Drift. Declared direction stays fixed while actual heading shifts — small compromises, postponed priorities, deferred preparation. After enough drift, you are no longer on the path you think you are on.
- Sedimentation. Forward motion continues, but stabilizing rituals — flashcards, journaling, preparation blocks, capture practice — fall away one by one. Wood et al. note that habitual action in stable contexts requires less conscious guidance; when those cues erode, non-habitual effort returns and stress rises.
Both are slow. Both feel like nothing in the moment. Both compound.
Applications
A weekly ritual stack exists to make drift and sedimentation visible before they compound — the cost of early detection stays lower than the cost of waking up far off-course.
Sources
Cite
- Wood, W., Quinn, J. M., & Kashy, D. A. (2002). Habits in everyday life: Thought, emotion, and action. Journal of Personality and Social Psychology, 83(6), 1281–1297
- Clear, J. (2018). Atomic habits. Avery