A short tour of how your own thinking actually works, broken into small rooms.
Most of what your brain does happens before you notice it. Decisions, preferences, remembered facts - by the time they reach conscious thought, they have already been shaped by a long list of small, fast, unconscious processes. Some of those processes are useful. Some of them quietly mislead you. Quirks is a museum where you can poke at a few of them, in your own life and your own data, and see what comes back.
Each room is a self-contained experiment. Bias Lab walks you through scenarios designed to trigger common cognitive biases and shows you which ones you fell for. Where You Stand takes a few numbers about you and shows where they sit in the world's distribution. Calibrator asks fifteen trivia questions and your confidence on each, then plots where stated confidence and actual accuracy diverged. Jury gives you ten short cases to deliberate, and reveals where your verdicts cluster on four moral axes. More rooms may come.
The point isn't to make you feel bad about how you think. Everyone falls for the same patterns, including the researchers who named them. The point is to know your own defaults a little better. A small amount of self-awareness goes a long way.
This isn't an academic tool. The experiments are simplified versions of effects that psychologists study with much more rigor. Where we make a claim, we point at the research behind it - but treat what you see here as a conversation starter with yourself, not a diagnosis.
There are no accounts, no analytics, no tracking. Your answers stay in your browser and disappear when you close the tab. Any image you download is generated on your own computer and never sent anywhere.
Built by one person with substantial help from modern AI models. Every claim was checked, every room was tuned by hand. The AI handled the volume work - drafting question banks, sketching code, generating per-country lookup tables - so the human time went to judgment, taste, and copy. The friction to make something is lower than it has ever been. If you have been carrying an idea, this might be your moment to start.
There are no ads, donation prompts, or paywalls here. If something in one of the rooms gave you a small jolt of recognition - that is more than enough.