Observed arrival · 2026-10-01

The Cognitive Bias Explorer

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An interactive guide to 188 cognitive biases, with short videos, experiments, a quiz, and practical habits for catching them.

Landing page captured for the 2026-10-01 issue.

For: People learning to recognize cognitive biases
Worth noticing: The self-check collection is saved only on the current device, and the page credits its source material under CC BY-SA 4.0.

Field notes

Entries are grouped by family, and the page distinguishes cognitive biases from related memory effects, logical fallacies, alternate names, and a few items it says are not biases. The activities include ten experiments, an eight-scenario quiz, and a checklist of eight habits. The page credits The Cognitive Bias Codex and the Wikipedia list of cognitive biases, and identifies its license as CC BY-SA 4.0.

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