Probability & Logic
How the brain miscalculates odds, patterns, and what "randomness" actually looks like.
Most people could not pass a basic statistics quiz. The biases in this category are why even people who *can* pass one still bet wrong, argue wrong, and reason wrong when the numbers matter.
The other 11 clusters.
The quiet ways remembering rewrites the past instead of retrieving it.
Why explaining other people's behavior is almost always wrong — and usually wrong in the same direction.
How the mind defends its self-image from any evidence that threatens it.
Why changing your mind is so hard, even when the evidence says you should.
What your senses notice, skip, and quietly invent without telling you.
The quiet glitches that rule how you spend money, effort, and time.
How context and framing quietly steer every decision you think you chose.
The pull of the group, the in-group, and the us-vs-them switch in the brain.
Why we do nothing, act too fast, or keep going long past the moment we should have stopped.
Biases that barely existed before the feed, the timeline, and the recommender.
How the brain decides who deserves what, and the places where that calculation breaks.
Train against all 231 of them.
The reference is free. Buyers unlock the interactive training — Daily Bias unlimited, Spot-the-Bias Quiz, Swipe flashcard mode, My Blindspots, Decision Pre-Flight, and the printable PDF. $29.50$59.