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Decision Journal

For every important decision, log: situation, options, expectation, reason — review after 6 months.

20 min Intermediate

Goal

Separate "good decision" from "good outcome".

Steps

  1. 1
    Open sheet: date, decision, options, expectation, reason.
3 more steps locked

Expected Outcome

Immediate
Learn from decisions instead of repeating.

Evidence base

School: Mental Models

Founders: Charlie Munger (1995)

Munger — Berkshire Hathaway philosophy.

Keywords

Frequently asked questions

How long does "Decision Journal" take?
This exercise takes about 20 minutes, practiced solo in a Journaling format.
When will I notice the effect of "Decision Journal"?
Learn from decisions instead of repeating. In the short term: Your bias patterns surface.
Is "Decision Journal" evidence-based?
Yes — it draws on Mental Models (Charlie Munger (1995)). Munger — Berkshire Hathaway philosophy.
Is "Decision Journal" suitable for beginners?
Its difficulty level is: Intermediate. No external tools required — it can be practiced directly inside the app.

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