Philosophy of science

Karl Popper

1902 – 1994

Ask what evidence would change your mind before the evidence arrives. It is the cheapest available discipline against premature certainty.

Read alongside: Sense

Start with
Conjectures and Refutations (1963)
Where they resist the book
Strict falsification describes little of how organisations actually learn; most claims here are too entangled to be cleanly refuted.

Works worth the time

Conjectures and Refutations · 1963

More approachable than the Logic. The opening essay is enough for the discipline the book borrows.

Publisher: Routledge

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Where Popper appears

II. StayCritical thinking

Urgency is the most common defeater of judgement.

Speed is not the enemy; unexamined speed is. Toulmin's anatomy of an argument — claim, grounds, warrant, rebuttal — is a way of slowing a decision by exactly one useful step. Popper's contribution is the habit of asking what evidence would change your mind, before the evidence arrives.

V. The PracticeCritical thinking

Keep the account of why you were wrong.

Forecast, record, review. Tetlock's work shows that calibration improves only when predictions are written down before the outcome and revisited afterwards. The organisational version is a decision log that survives reorganisation.