THE PROOF PRINCIPLE: Why Experts Fail and How Verification Saves Them

Expertise isn’t the problem. Unverified expertise is.Every day, smart, experienced people make preventable mistakes—not because they don’t know what to do, but because knowing isn’t the same as proving. In The Proof Principle, Mike McMahon shows why “confidence + experience” can quietly turn into blind spots—and how the highest-reliability professions avoid them.You’ll learn a simple, repeatable framework built around Four Proofs:Prove the Setup. Prove the Execution. Prove the Outcome. Prove the System.THE_PROOF_PRINCIPLE_COPYEDITEDDrawing from aviation, healthcare, insurance, leadership, and high-stakes operations, McMahon delivers practical tools you can use immediately: pre-action pauses, verification triggers, communication protocols, and checklists that prevent errors before they become expensive, dangerous, or irreversible. Read more