Why do we tend to think that things that happened recently are more likely to happen again?
The availability heuristic is the mind’s shortcut of judging how common, likely, or dangerous something is by how easily examples come to mind.
After seeing several news stories about plane crashes, flying may suddenly feel extremely risky. But air travel remains far safer than driving—a danger we rarely fear as intensely because ordinary car accidents receive less dramatic attention.
Our brains are built to remember vivid, emotional, recent, and repeated events. A shocking crime, a viral video, or a friend’s bad experience can therefore feel like strong evidence, even when it is only one memorable example.
This shortcut is useful: it helps us react quickly when time is short. But it can also distort decisions. Investors may assume a market crash is inevitable after weeks of alarming headlines. Parents may overestimate rare dangers while overlooking everyday risks such as poor sleep, distracted driving, or unhealthy food.
A helpful question is: “Am I judging the real frequency of this event—or simply how easily I can remember it?”
Memory is not a neutral statistics report. What is most available in the mind is not always what is most likely in life.
