The planning fallacy: why we underestimate how long a task will take

“I’ll be here in ten minutes,” you tell your friend on the phone while hurrying to put your shoes on. “We are aiming to launch at the end of year,” confidently tells the project manager to their boss. We have all been guilty of being overoptimistic when predicting how long a task will take. That’s … Read More

The Dunning–Kruger effect: you don’t know what you don’t know

Why do ignorant folks tend to overestimate the extent of their knowledge? How do incompetent people often seem to be unaware of how deficient their expertise is? Turns out, we are not very good at evaluating ourselves accurately. And one of the most obvious manifestations of this psychological deficiency is the Dunning–Kruger effect, the cognitive … Read More

Confirmation bias: believing what you see, seeing what you believe

“The eye sees only what the mind is prepared to comprehend.” — Robertson Davies. If you think women are bad drivers, you are more likely to notice driving mistakes made by women. A detective who is convinced a suspect is guilty is more likely to pay attention to evidence corroborating their intuition. These are examples … Read More

The curse of knowledge

Have you ever had a teacher who was very smart, but also terrible at actual teaching? An expert who used so much jargon you could not quite follow their explanation? This is called the “curse of knowledge”, a term coined in 1989 by economists Colin Camerer, George Loewenstein, and Martin Weber. It’s a cognitive bias … Read More

The Cobra Effect: how linear thinking leads to unintended consequences

Have you ever tried to fix a problem, only to make things worse? That’s called the Cobra Effect—when an attempted solution results in unintended consequences. Because most of our cause-to-effect experiences involve very simple, direct relationships, we tend to think in terms of linear chain of events. But the world is much more complex than … Read More