He Wrote It, So He Must Think It: The Correspondent Inference Trap
Why your brain automatically assumes that someone's behavior reveals their true character — even when you know they had no choice.
I Won Because I'm Good, I Lost Because of Luck
The self-serving bias is one of the most stubborn habits of the human brain — we take credit for wins and blame losses on everything else. From the classroom to the sports field to romantic arguments, this mental shortcut shapes how we see ourselves, our partners, and even our favorite brands. The research on it is surprisingly funny, in a 'that's so me' kind of way.
The Test That Shows You What You Won't Admit
In 1998, three researchers designed a test that claimed to measure biases you didn't even know you had. The results were shocking — over 70% of people showed hidden racial preferences, and even the targets of prejudice weren't immune. But then the trouble started.
Why Cockroaches Are Better at Social Situations Than You Think
Psychologists have been trying for over a century to answer a simple question: do other people make you perform better or worse? The answer, it turns out, is 'yes.' Norman Triplett's cyclists rode faster with competitors. Max Ringelmann's rope-pullers eased up in groups. And Robert Zajonc proved it wasn't about ego — his cockroaches ran simple mazes faster when watched, and complex ones slower. The real variable isn't whether someone's watching. It's whether they can tell it's you.
She Can't Just Be a Bank Teller: The Linda Problem and Why We're All Bad at Probability
Meet Linda: 31, single, outspoken, philosophy major, fought for social justice. Is she a bank teller — or a bank teller AND a feminist? 85% of people pick the second option. But that option is mathematically impossible. Welcome to the representativeness heuristic, the mental shortcut that makes us judge by 'looks like' instead of 'how likely.'
Why You Finish a Bad Meal (and Other Ways Your Brain Wastes Your Money)
The sunk cost fallacy makes you eat mediocre food, stay in dead-end projects, and cling to bad investments — all because your brain can't let go of what's already gone. The classic experiments that revealed this quirk of human nature will change how you see every 'but I already paid for it' moment.
The Number Game That Proves Your Brain Is a Yes-Man
In 1960, psychologist Peter Wason gave people a simple number puzzle and discovered something unsettling: we're not wired to find the truth — we're wired to find evidence that we're already right. It's called confirmation bias, and it runs your brain on autopilot.