What is The Onion Brain?

The Onion Brain is a mental model used for better thinking and decision-making.

How do you apply The Onion Brain?

To apply The Onion Brain, identify situations where this framework is relevant, then use it as a lens to evaluate your options and decisions. The model is most useful when combined with other complementary mental models.

What category does The Onion Brain fall under?

The Onion Brain falls under the Psychology & Behavior category of mental models. Other models in this category can be found on the Psychology & Behavior hub page.

Why is The Onion Brain important?

The Onion Brain is important because it provides a structured way to think about problems that would otherwise be approached with intuition alone. Understanding this model helps you avoid common reasoning errors and make better decisions.