Cognitive Science Laboratory
Six Experiments
in Thinking
Each simulator is designed to expose how your mind actually works — biases, blind spots, and all. Complete one and you'll never think the same way again.
6
Experiments
Free
No signup
5–20
Minutes each
100%
In your browser
01Which biases control your thinking?
Easy7 minutes
Cognitive Bias Scanner
Discover which cognitive biases control your thinking. Get your Rationality Score.
Easy7 minutes
0212 mind-bending scenarios that break your brain
Medium15-20 minutes
The Paradox Game
Navigate 12 mind-bending paradoxes. Each unlocks a powerful mental model.
Medium15-20 minutes
03Are you an overthinker or speed demon?
Fun5 minutes
Decision Speed Analyzer
Fast-paced game testing your decision speed. Compete for the leaderboard.
Fun5 minutes
04Knowing when to fold is the ultimate skill.
Hard10 minutes
The Sunk Cost Casino
The house wants you to keep playing. Can you quit before you lose everything?
Hard10 minutes
05Design a fair world, without knowing who you'll be.
Medium5-10 minutes
The Veil of Ignorance
Design a society, then spin the wheel to see who you are born as. Will you survive your own rules?
Medium5-10 minutes
06Stop being wrong. Start being calibrated.
Expert5 minutes
The Bayesian Betting Hall
Bet on truth. Learn to assign probabilities and cure overconfidence.
Expert5 minutes