A collection of frameworks that shape how I approach investing. This section focuses on fundamentals and first principles - less about what to buy and more about how to think.
📘Foundations
The rules of the game - risk, time, incentives, compounding.
Why knowing something is not the same as being paid for it
Why volatility is a poor proxy for danger
Translation, not precision
Learning in a probabilistic world
Why the price of money shapes everything else
🧠Mental Models for Uncertain Markets
Probabilities, decision-making, and staying rational under pressure.
Expected value and process over prediction
Defend against being precisely wrong.
Developing expertise
Patience is your edge
Check the supply side
Unforced errors
It's warmer in the herd
📊Valuation Tools & Models
Tools for translating narratives into numbers.
The gold standard of valuation.
Comparison and context
Cash returned to shareholders.
Decoding multiples
What's already priced in?
Operating performance & market expectations
🇬🇧UK Investing
Vehicles, taxes, and practical compounding in the UK.
ISA's and how to use them
🗒️Field Notes
Experiential learning - what changed my mind, and what didn’t.
Notes and reflections from the partnership years through Berkshire Hathaway (1957 - 2025)
My love-hate relationship with technical analysis