[ThinkBetter](https://thinkbetter.app/) → [Cognitive Biases](https://thinkbetter.app/cognitive-biases.md) → Availability Heuristic

# Availability Heuristic

People tend to rely on immediate examples that come to mind when evaluating something.

![Availability Heuristic illustration](https://assets.thinkbetter.app/images/availability_heuristic.png)

The Availability Heuristic is a mental shortcut that relies on immediate examples that come to a person's mind when evaluating a specific topic, concept, method, or decision. Introduced by psychologists Amos Tversky and Daniel Kahneman in 1973, this heuristic occurs because easily recalled or vivid memories are often mistaken for being more common than they are. For example, people might overestimate the likelihood of plane crashes if they recently read a news article about a crash. The availability of such information in one's memory makes it seem disproportionately important or common, which can skew perception and judgment.

## Example

**Risk Perception After News Reports**

After watching news reports about shark attacks, a family might cancel their beach vacation due to fear, even though such attacks are extremely rare. Why? The recent and vivid reports make the threat seem larger than it statistically is.

## In your professional life

**Log Work Issues for Accuracy**

Keep a log of various types of issues encountered in your work to ensure you're not overestimating the frequency of recent or memorable problems. For example, if you’re a software developer, maintain a record of different bugs and challenges you encounter. This helps you see a comprehensive picture of recurring issues and avoid the bias of focusing only on recent or standout problems.

## Go deeper in ThinkBetter

The ThinkBetter app has the full Availability Heuristic deep-dive: more examples, a quiz to test yourself, audio narration, and a weekly path that builds these ideas into a habit.

- iOS: https://apps.apple.com/app/id6459831884
- Android: https://play.google.com/store/apps/details?id=io.ventureship.braintricks

### Related concepts

- [Salience Bias](https://thinkbetter.app/cognitive-biases/salience-bias.md)
- [Availability Cascade](https://thinkbetter.app/cognitive-biases/availability-cascade.md)
- [The Baader-Meinhof Phenomenon](https://thinkbetter.app/cognitive-biases/baader-meinhof-phenomenon.md)
- [Anchoring Bias](https://thinkbetter.app/cognitive-biases/anchoring-bias.md)
- [All mental models](https://thinkbetter.app/mental-models.md)

Page: https://thinkbetter.app/cognitive-biases/availability-heuristic