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Thinking books · Decision making · Shane Parrish, 2023

Clear Thinking — the big ideas

On the ordinary moments before a decision, where most outcomes are actually set.

Free — no account needed to read

The big ideas

Most damage is done in moments nobody recognises as decisions — the reply sent immediately, the defence of a position, the going along with the room.

It names four default reactions: emotion, ego, social pressure and inertia, and argues the work is building safeguards rather than resisting them in the moment.

Safeguards are concrete: a rule set in advance, a forced pause, a checklist, or someone whose job is to disagree.

Defining the problem correctly and setting the criteria before seeing the options does most of the work in any decision.

Practise it — no need to have read it

Write one rule for yourself that removes a decision you keep making badly — a waiting period, a default, a person you check with.

A hint: The rule has to be set now, while it costs nothing.

Where it shows up in real life

  • Responding to criticism
  • Purchases
  • Reacting to a message that annoyed you

Described in our own words with the source named — never quoted, and not a substitute for reading the book.

Thinking methods from this book

  • Inversion — Asking how to guarantee the bad outcome, then not doing those things.
  • Mark the edge of what you know — Naming where your competence ends, so you can behave differently outside it.

The thinking it builds

  • Decision Thinking — Make better decisions under uncertainty
  • Reflective Thinking — Examine your own reasoning

Previous: Noise — Kahneman, Sibony & Sunstein

Next: Creative Confidence — Tom & David Kelley

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