Heuristics and biases in decision making, explained

3-Second Blueprint (English)

1. Heuristics are experience-based mental shortcuts that speed up daily decisions without deliberating over every single option.
2. The availability heuristic makes vivid news images of tragedy skew perceptions, even though modern human violence is historically low.
3. For a 1-in-1,000 disease with a 10% false-positive rate, a positive test still leaves a 99% chance the patient lacks the disease.