Explore. Question. Understand.
A field guide to the mind's shortcuts. Browse 138 cognitive biases grouped by how they shape thinking, run thought experiments that reveal them in action, and build a personal catalogue of insights.
Confirmation Bias
Favouring information that supports what we already believe.
Explore →Put yourself in the situation.
This experiment places you in a realistic decision. Your instinctive choice will reveal whether bias is at work.
This experiment places you in a realistic decision. Your instinctive choice will reveal whether bias is at work.
This experiment places you in a realistic decision. Your instinctive choice will reveal whether bias is at work.
This experiment places you in a realistic decision. Your instinctive choice will reveal whether bias is at work.
Understand each bias in full.
Confirmation Bias
Favouring information that supports what we already believe.
Anchoring
Letting the first number or idea pull later judgement.
Availability Heuristic
Judging likelihood by what comes to mind most easily.
Dunning-Kruger Effect
Low skill can hide its own limits.
Loss Aversion
Losses feel stronger than equivalent gains.
Sunk Cost Fallacy
Past investment can trap future judgement.
Halo Effect
One positive trait can colour the whole picture.
Negativity Bias
Bad news often feels louder than good news.
Explore the Bias Comparator
See how biases compare side by side — their definitions, examples, warning signs, and countermeasures. Pick any two and discover what sets them apart.