--- title: "Five-line decision journal | Len P. van der Hof | Len P. van der Hof" description: "A five-line decision journal is written before you act: what you choose and what it forecloses, what you believed, what you feared. What happened and next time wait for review. After the result, you have a story. Before it, you have calibration data." image: "https://lenvanderhof.com/media/generated/blog-hero-five-line-journal-before-v1.5fe4d7d118c8.wide.webp" --- [Founder Performance](https://lenvanderhof.com/en/blog/category/founder-performance/) Research guide # Write the five lines before you act An entry after the outcome is a memoir. An entry before it is a record. Len P. van der HofPublished 26 August 20264 min read Three lines before the act. Two after. Direct answer A five-line decision journal is Artifact 3 in The Psychology of Founder Resilience. Write it before you act. The live lines are: Decision (what you choose and what it forecloses), What I believed, What I feared, What happened (fill at review), Next time (one process adjustment). An entry after the result is compromised, because hindsight rewrites what you knew. The book's own evidence note is honest: a journal does not guarantee better decisions. It separates process from outcome so later-you can score the call. CALIBRATE is the practice of matching the strength of a judgment to the strength of the evidence. The Calibrated Mind is live in English and Dutch. The five lines are already usable. ## Key takeaways - Write the first three lines before you act. The last two wait for review. - If you cannot name what the choice forecloses, you are not ready to commit. - A journal does not guarantee a better decision. It stops hindsight from inventing the one you wish you had made. - Confidence is a report. The Calibrated Mind is live in English and Dutch. The five lines already give you something to update. The board asked why you hired. You have a clean story. It is the story that exists now, after the hire worked, or after it failed. The story that existed in the room is gone. The usual diagnosis is “we should write things down more.” Often you wrote them down after the result, which is when they stop being a record. [The Psychology of Founder Resilience](https://lenvanderhof.com/books/psychology-of-founder-resilience/) already ships this instrument. Chapter 6 calls it Artifact 3. This page is the instrument, not the book introduction and not a second weekly-review article. ## Write it before you act The live table is five lines. **Decision.** What you choose, and what it forecloses. If you cannot name the option you are closing, you are not ready. **What I believed.** The core assumptions. Not the mood. The claims you are betting. **What I feared.** The regret you are optimizing against. Fear of looking weak. Fear of being late. Fear of being the person who killed the hire you just announced. **What happened.** Leave it blank. Fill it at review. **Next time.** One process adjustment. Also blank until review. The first three lines are a pre-commitment. The last two are a score. Swap that order and you have a memoir. The chapter is explicit: an entry written after the result is compromised. Hindsight rewrites what you knew and expected. You keep the outcome data. You lose the signal. ## A journal is not a better decision The book’s own evidence note is the honest one. Process quality and outcome quality are related and not the same. Good outcomes follow bad reasoning. Bad outcomes follow sound ones. A journal written first lets later-you score the call against what you actually believed. It does not prove you will decide better. The evidence behind that note is moderate and indirect, from judgment literature, not founder-only trials. Anyone selling “five lines, better Q3” is selling a hope. What the five lines do give you is [CALIBRATE](https://lenvanderhof.com/glossary/calibrate/) in miniature: match the strength of the judgment to the strength of the evidence, then update when the facts move. Confidence is a report, not a personality trait. [The Calibrated Mind](https://lenvanderhof.com/books/the-calibrated-mind/) owns the longer practice. The book is available now in English and Dutch. You do not need the hardcover to write the three lines before the meeting ends. ## Not every call earns five lines The live chapter sorts calls before it journals them. Type 1 is reversible and cheap: decide fast. Type 2 is reversible and costly: sleep on it. Type 3 is effectively irreversible: pre-mortem, dissent, and the five lines. The chapter names Jeff Bezos’s one-way and two-way doors as the ancestor, then splits the two-way door. This page does not teach the full tree. It names the bound. If the call can be undone in a month at low cost, do not perform a journal so you can feel rigorous. If it cannot, do not skip the three lines because the room is moving. [RESILIENT](https://lenvanderhof.com/glossary/resilient/) is the dashboard around the call. This page is the card in the wallet. The [worksheets](https://lenvanderhof.com/founder-resilience/worksheets/) already print Artifact 3. Do not invent a sixth line so the five feel like a product. ## A fifteen-minute card Pick the next Type 3 call. Not last quarter’s. 1. Write the decision in one sentence. Write what it forecloses in the next. If the second sentence is blank, stop. 2. Write what you believe. One assumption you would be embarrassed to see in six months. 3. Write what you fear. The regret, not the market narrative. 4. Leave “what happened” and “next time” empty. Date the card. 5. Put the card where the meeting cannot end without it. Wallet, printed Artifact 3, the top of the doc. Not a notes app you will open after. If step 1 or 4 is already filled with the outcome, you do not have a journal. You have a story. Write the three lines before the act. Then later-you has something to update besides your character. ## Terminology - [RESILIENT](https://lenvanderhof.com/glossary/resilient/) - [CALIBRATE](https://lenvanderhof.com/glossary/calibrate/) ## Sources 1. [The Psychology of Founder Resilience](https://lenvanderhof.com/books/psychology-of-founder-resilience/) 2. [The Psychology of Founder Resilience (introduction)](https://lenvanderhof.com/en/blog/psychology-of-founder-resilience-introduction/) 3. [RESILIENT worksheets](https://lenvanderhof.com/founder-resilience/worksheets/) 4. [RESILIENT (glossary)](https://lenvanderhof.com/glossary/resilient/) 5. [CALIBRATE (glossary)](https://lenvanderhof.com/glossary/calibrate/) 6. [The Calibrated Mind](https://lenvanderhof.com/books/the-calibrated-mind/) ## Further reading - [The Psychology of Founder Resilience](https://lenvanderhof.com/books/psychology-of-founder-resilience/) - [Book introduction](https://lenvanderhof.com/en/blog/psychology-of-founder-resilience-introduction/) - [Worksheets](https://lenvanderhof.com/founder-resilience/worksheets/) - [RESILIENT](https://lenvanderhof.com/glossary/resilient/) - [CALIBRATE](https://lenvanderhof.com/glossary/calibrate/) - [The Calibrated Mind](https://lenvanderhof.com/books/the-calibrated-mind/) About the author ## [Len P. van der Hof](https://lenvanderhof.com/en/authors/len-p-van-der-hof/) Entrepreneur, AI Innovator and Venture Builder Len P. van der Hof builds practical AI systems, digital ventures and evidence-informed tools for founders. ```json { "@context": "https://schema.org", "@graph": [ { "@type": "Person", "@id": "https://lenvanderhof.com/#person", "name": "Len P. van der Hof", "alternateName": [ "Len 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