Review and scale deliberately
Use 30 days of evidence to keep, revise, expand, replace, or stop the habit for a clear reason.
Building Lasting Habits
From Stanford University. Watch here or open it on YouTube .
During the course primer, listen for ideas that change how you approach “Review and scale deliberately.” Pause once to capture a useful point, then apply it while producing a 30-day evidence review and a keep, revise, scale, replace, or stop decision with next-cycle rules.What this lesson is really solving.
Use 30 days of evidence to keep, revise, expand, replace, or stop the habit for a clear reason. This is lesson 6 because later decisions depend on a 30-day evidence review and a keep, revise, scale, replace, or stop decision with next-cycle rules. A habit is a prototype that earns expansion by becoming stable and useful. Use your own numbers, files, environment, and constraints so the result survives outside the course.
Understand the idea before touching the steps.
A habit is a prototype that earns expansion by becoming stable and useful.
Follow these steps in order.
Take the action in each step; then use the deliverable below to prove the lesson is finished.
- 1
Calculate completion by version and review timing, friction, disruptions, subjective benefit, and unintended cost.
- 2
Decide whether the behavior is connected closely enough to the desired outcome to continue.
- 3
If stable, increase only one dimension such as duration, difficulty, frequency, or context while retaining the tiny version.
- 4
Archive the experiment with lessons and schedule a later check so maintenance does not depend on novelty.
See the standard in context.
Devin completes 26 of 30 days, keeps one page as the floor, and increases the standard version from ten to fifteen minutes. The learner saves a 30-day evidence review and a keep, revise, scale, replace, or stop decision with next-cycle rules and notes the evidence or assumption behind the choice so it can be reviewed and improved later.
Inspect before you move on.
- The finished work visibly includes a 30-day evidence review and a keep, revise, scale, replace, or stop decision with next-cycle rules.
- You tested the work against this common failure: Adding several harder habits as soon as the first week feels exciting, before the original behavior survives disruption.
- Another person could verify this mastery standard: The next version changes one justified variable and preserves a clear minimum and recovery route.
Your deliverable
A 30-day evidence review and a keep, revise, scale, replace, or stop decision with next-cycle rules.
Watch for this
Adding several harder habits as soon as the first week feels exciting, before the original behavior survives disruption.
Prove it—don’t just recognize it.
The next version changes one justified variable and preserves a clear minimum and recovery route.
Quick knowledge check
Answer from the lesson—not from confidence alone. Score at least 2 of 3 to unlock completion.
This curriculum-aligned check is scored automatically and stored with your account when signed in. It is an objective learning signal, but it has not yet been independently validated as a standardized assessment.
Tools, templates, and references
Pass the knowledge check above first.
Completion unlocks after a score of 2 out of 3. Then confirm that you produced the lesson deliverable.
Go to the knowledge check