Start here · Essential guide
A Beginners Guide to Critical Thinking
A beginner-friendly introduction to critical thinking: how to question claims, weigh evidence, spot weak reasoning and stay open to changing your mind.
Mind and Self-Improvement
Critical Thinking and Decisions
Tools for reasoning clearly, weighing evidence and choosing well.
Changing Your Mind: Why It Is Hard and How to Do It
Why beliefs resist change, how identity and habit protect them, and practical ways to practice openness and revise your views without feeling defeated.
Common Logical Fallacies and How to Recognize Them
A plain guide to common logical fallacies, with everyday examples, so you can spot flawed reasoning and avoid misusing the labels yourself.
Correlation Is Not Causation
Why two things rising or falling together does not prove one causes the other, with plain examples of confounders, reverse causation and coincidence.
How to Judge Whether a Source Is Reliable
General questions to ask about where information comes from: who made it, how they know, what they gain, and whether others can confirm it.
How to Read Statistics Without Being Fooled
How averages, samples, percentages and charts can mislead, with simple hypothetical examples and questions to ask before trusting a number.
Making Decisions Under Uncertainty
Simple decision frameworks for comparing options when information is incomplete: pros and cons, scenarios, reversibility, regret and expected outcomes.
Mental Models: Simple Ideas for Better Thinking
What mental models are, why they help, and a handful of plain examples such as opportunity cost, incentives, the map and the territory, and second-order effects.
The Scientific Method in Everyday Life
How the habits of science, forming a hypothesis, testing it fairly and revising it, can help with everyday questions from sleep routines to household problems.
Thinking in Probabilities
How to reason about likelihood instead of certainty: using degrees of confidence, base rates and updating, with simple hypothetical examples.
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