15 Mental Models in 15 Days
Think Smarter. Make Better Decisions. Understand People.
A free 15-day email course that teaches the world’s most useful mental models in just 5 minutes a day.

THE PROBLEM
Most People Were Never Taught How To Think
School teaches subjects, while life demands decisions.
Yet few people are ever taught:
- How to think clearly
- How to avoid common thinking mistakes
- How to make better decisions
- How to understand why people behave the way they do
That’s what mental models help solve.
WHAT YOU’LL LEARN
Think Smarter
- First Principles Thinking
- Systems Thinking
- Inversion
- Circle of Competence
- Confirmation Bias
Make Better Decisions
- Opportunity Cost
- Bayesian Thinking
- Margin of Safety
- Compounding
- Regret Minimization
Decode People
- Social Proof
- Incentives
- Trust Signals
- Hanlon’s Razor
COURSE CURRICULUM
Day 1 → First Principles Thinking
Day 2 → Second-Order Thinking
Day 3 → Opportunity Cost
Day 4 → Confirmation Bias
Day 5 → Inversion
Day 6 → Systems Thinking
Day 7 → Social Proof
Day 8 → Bayesian Thinking
Day 9 → Incentives Drive Behavior
Day 10 → Circle of Competence
Day 11 → Margin of Safety
Day 12 → Hanlon’s Razor
Day 13 → Compounding
Day 14 → Trust Signals
Day 15 → Regret Minimization
WHAT YOU GET
Free Email Course
- 15 lessons
- 5 minutes per day
- Practical exercises
- Real-world examples
- Free Mental Models PDF