The Availability Heuristic

What The Availability Heuristic means

The availability heuristic is the shortcut by which we judge how common or likely something is by how easily an example comes to mind. What comes to mind easily feels more true than it is. That is the definition. Owning it means noticing the moment a feeling of likelihood arrives fully formed, and asking where it came from. We start to separate "I can picture this" from "this happens often". We stop rebuilding a whole plan around the last vivid failure. Before, one dramatic story in the feed set our sense of the risk. After, we treat the ease of recall as a fact about our week's viewing, not about the world, and go and look at how often the thing actually happens.

Not to be confused with

The availability heuristic is not the representativeness heuristic. Availability judges how likely something is by how easily it comes to mind. Representativeness judges by how much it resembles the type, which is why a quiet, tidy person seems more likely to be a librarian than a farmer.

The Availability Heuristic examples: where it shows up

• At work: the one customer who complained loudly last month shapes the roadmap more than the thousand who said nothing.
• With money: we buy insurance against the disaster that was on the news and skip the boring one that is far more likely.
• In the news: what gets covered every night starts to feel frequent, and what is never filmed starts to feel rare.

Where it sits

Concept 3 of 5 in Reality Deceives, a journey in the course The Examined Mind.

See where The Availability Heuristic sits on the sky →

Nearest on the sky

• Base-Rate Neglect
• Confirmation Bias
• The Context Window
• The Dichotomy of Control
• Hedonic Adaptation
• The Peak-End Rule

A filled dot marks a star that is already open to walk.