Mental model
A mental model is a simplified representation of reality that helps predict, explain, and make decisions.
Definition
Mental models are needed because the world is too complex to analyze everything from scratch. At the same time, each model misses some data and can lead to errors if it is outdated or too rigid. Development is about consciously updating models, not about having one perfect model.
Key ideas
- Simplifying reality
- Anticipating impacts
- Belief update
Practice and life
Before an important decision, write down your situation model: assumptions, data, unknowns and conditions under which you will change your mind.
Common misconceptions
It is a mistake to confuse the model with reality. The second mistake is using an old model in a new context.
> You don't just react to reality, but also to the model through which you understand it.
> — Guru Element
Questions for self-reflection
- What model of this situation do I have in my head?
- What does this model leave out?
- What data would force me to change it?