How it works
Four steps from a thought to a judgment you can revisit.


Create a judgment
Write a claim that can be tested or observed over time. Add its scope, topic, and review cadence. Make the title specific enough to revisit later.

Expose key assumptions
List the conditions that need to hold, assign a weight to each one, and mark any indispensable condition. This is where the real structure becomes visible.

Keep adding evidence
Record the source, direction, impact, and date of new evidence. Supporting, weakening, and neutral evidence all belong in the same history.

Complete regular reviews
On each review date, inspect the assumptions and evidence again. Record what changed your view, preserve a snapshot, and schedule the next review.
Where to begin
Start with one judgment you will actually revisit.
It can be a product decision, an industry view, a dated forecast, or an important personal choice. The first version does not need to be perfect. What matters is naming the information that would change your mind.
Create your first judgmentCommon question
Do I need a large body of research before I begin?
No. Start with the judgment and two or three key assumptions. Evidence, weights, and review records can accumulate as you use the product. A reliable process comes from consistent practice, not from filling in everything perfectly on day one.