Learn how a market actually prices a bet.

Two textbooks. Free essays. Lessons on YouTube. Calculators when you need one number. Teaching — not a list of stocks to buy.

Books

Financial AI · Rulers Before Models

Blog

Read the chapters in a quiet page.

YouTube

Watch the playlist on this site.

Tools

Size, journal, watchlist — free tools, no picks.

Books

Cover of Financial AI

Financial AI

How a learning system earns an edge — from a coin toss through to checking whether the edge is real.

Read the blog
Cover of Rulers Before Models

Rulers Before Models

Why a market can show two honest prices at once, and why averaging them is usually a mistake.

Read the blog

Tools

Free process tools on the app — size, checklist, journal, paper book, watchlist. None of them tell you what to buy.