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Ideas / Two Sigma: you are the advantage
An idea from Four Weeks, Not Four Years

Two Sigma: you are the advantage

One on one beats the classroom by two standard deviations. You are the advantage. Act like it.

This idea is shared between Four Weeks, Not Four Years and Sui Learning, Trenton Rich's book on teaching children at home. The full entry, with the evidence and sources, lives with the homeschooling method at suilearn.ing.

In this book

In Four Weeks, Not Four Years: Chapter 3.

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Cite this idea. Trenton Rich, "Two Sigma: you are the advantage," in Four Weeks, Not Four Years (2026), maxwellrich.com/idea-two-sigma.html. Free to quote, copy and reuse with credit under CC BY 4.0. The book itself is under normal copyright.