Availability Heuristic: Why We Make Flawed Choices (bis 70 Zeichen)

The>The availability heuristic is a mental shortcut that helps us estimate the probability of an event based on how easily examples come to mind. If an event brings to mind many media stories, personal anecdotes, or vivid memories, we perceive it as more likely—even if statistics show otherwise. A classic example: after hearing constant news about plane crashes, we might overestimate how dangerous flying is. Yet driving is statistically far riskier than flying. Why? Because recent, sensational events are more memorable than common but less dramatic ones.

Why does this happen? Our brains crave simplicity. The availability of information—how easily we can retrieve it—strongly influences our judgments, more so than we realize. This explains why investors panic during market crashes or people fear rare but alarming risks (like terrorist attacks), even though such events occur far less often than mundane ones.

The heuristic is helpful but flawed. It speeds up decisions, but it's not a reliable guide to probability. To avoid mistakes, we should consciously consider statistics and long-term data—not just what's fresh in our memory.