Foundations of Better Thinking

The 10 essential mental models, in the order that builds understanding most efficiently. Start here.

This path takes you through the ten most foundational mental models — the ones that provide the greatest leverage across the widest range of situations. Each builds on the previous one. Follow them in order.

1

The Map Is Not the Territory

Start here. Every mental model is itself a map — a simplification of reality. Understanding this keeps you humble about all the models that follow.

2

Circle of Competence

Know what you know and what you don't. This model is the foundation of intellectual honesty and good judgment.

3

First Principles Thinking

The most powerful problem-solving tool available. Decompose any problem into its fundamental truths and rebuild from there.

4

Inversion

The complement to forward thinking. Ask "what would guarantee failure?" and avoid those things. Often easier than chasing success directly.

5

Second-Order Thinking

Think one step further than everyone else. "And then what?" is the question that separates good decisions from popular ones.

6

Probabilistic Thinking

Stop thinking in certainties. Assign probabilities to outcomes and make decisions based on expected value, not gut feeling.

7

Occam's Razor

The simplest explanation that fits the evidence is usually correct. A powerful filter against overthinking and conspiracy.

8

Hanlon's Razor

Don't assume malice when incompetence or accident will explain it. Transforms how you interpret other people's behaviour.

9

Feedback Loops

Everything is a system. Reinforcing loops amplify change; balancing loops resist it. Understanding this is the gateway to systems thinking.

10

Antifragility

The capstone. Don't just survive uncertainty — build systems that gain from it. Position yourself for upside while limiting downside.

What’s next?

Once you’ve internalised these ten models, you have a powerful general-purpose thinking toolkit. From here, explore by discipline — Systems Thinking, Psychology, Economics — or by use case: Making Decisions, Managing Risk, Solving Problems.