Social effects
What other people's presence, opinions, and signals do to your thinking.
Most thinking happens in the shadow of other thinkers. These glitches describe the predictable ways your judgment shifts when a group is watching, when authority weighs in, or when belonging is on the line.
The other 7 types of glitch.
Systematic errors in judgment, baked into how the brain weighs evidence.
How memory rewrites itself — distortions, false confidence, fading detail.
Patterns that hijack a clean decision into a costly one.
Glitches in how you think about your own thinking.
Where the eyes (or attention) lie before the brain even gets a vote.
Argument moves that look like reasoning but skip a step.
Mental shortcuts — fast, often right, occasionally catastrophic.
Train against all 231 of them.
The reference is free. Buyers unlock the interactive training — Spot-the-Bias Quiz unlimited, Swipe Deck with spaced repetition, My Blindspots, Decision Pre-Flight, the Field Guide e-book, Cheat Sheets, and the Printable Deck. $29.50$59.