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Guide 02 · Cognition & Decisions

The Clear Thinker's Playbook

"How to point the machine in the right direction."

Mental Models, Decision Frameworks & the Practice of Clear Thinking

Synthesized from 28 books · 2 courses · 6 newsletters · 3 tools · 16 sections · 6 appendices · 1 self-assessment scorecard

Overview

The quality of your thinking determines the quality of your life. A synthesis of cognitive science, decision theory, Stoic philosophy, mental models, and the daily practices that help human beings think clearly under pressure.

Who this is for

Anyone who makes consequential decisions — especially people building something: a venture, a farm, a family, a creative practice, a career of impact.

Pull quote

"The Operator Playbook teaches you how to run the machine. This playbook teaches you how to think clearly enough to point the machine in the right direction."

The 10 Principles

Every section maps back to one or more of these. Return here when the work gets hard.

  1. 01

    The space between stimulus and response is where clear thinking lives.

    Widen it.

  2. 02

    Your defaults are running the show until you notice them.

    Notice them.

  3. 03

    Mental models are thinking tools. The more you carry, the more you see.

    Collect them.

  4. 04

    Every opinion is a hypothesis. Hold it like a scientist, not a preacher.

    Test it.

  5. 05

    Reversible decisions deserve speed. Irreversible decisions deserve deliberation.

    Know the difference.

  6. 06

    The default option wins. Design your defaults before they design your life.

    Set them.

  7. 07

    Avoiding stupidity is easier and more reliable than seeking brilliance.

    Invert always.

  8. 08

    What you pay attention to becomes your life.

    Protect it.

  9. 09

    Journaling is thinking on paper. Paper thinks better than your head.

    Write daily.

  10. 10

    Philosophy is only as good as its practice. Wisdom unused is wisdom wasted.

    Practice it.

Contents

16 sections · 4 parts · 6 appendices.

I · Foundations — How Thinking Works

II · Decisions — Choosing Well

III · Practice — Daily Disciplines

IV · Integration — The Examined Life

Appendices

From the Library

Books in this Library that informed this guide.

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The Impact Operator Playbook
How to run the machine.
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The Personal Wealth Playbook
How to fund the mission without becoming it.