Gambler’s Fallacy

Questions

What is Gambler’s Fallacy?

The Gambler's Fallacy is the belief that a streak makes the opposite outcome more likely, or that a rare result is due. For independent events, like coin flips and lottery draws, the past has no influence. When number 53 went missing from Italy's Venice lottery for 182 draws, Italians bet billions on it anyway.

How do you avoid Gambler’s Fallacy?

Use it whenever you feel something is overdue: check whether the events are truly independent, judge each case on its merits, and look at reasons, not runs.

When does Gambler’s Fallacy matter?

Gambler’s Fallacy is one of the 32 mental models for risk, the situations where you ask: What could go wrong, and what will I do if it does? Within that, it belongs to “Misreading chance”, alongside Availability Bias, Conjunction Fallacy and Hot-Hand Fallacy.

What is an example of Gambler’s Fallacy?

Two stories show it at work: Venice’s missing 53 (2003–2005) and Maryland’s daily numbers (1991). Both are told in full in The Mental Models Daily Almanac, which has two stories for each of its 365 models.

Which mental models are related to Gambler’s Fallacy?

Clustering Illusion, Regression to the Mean and Hot-Hand Fallacy. Gambler’s Fallacy itself comes from economics.