Many people think building massive wealth is just luck, but self-made billionaires simply train their brains to think differently. To build a successful business, you must stop copying others and start using first principles thinking to break down big problems into basic facts. Mark Zuckerberg started with a simple dorm room project that grew into a massive global network because he had a unique vision. Jeff Bezos used a regret minimization framework to leave his safe job and build a three-trillion-dollar empire because he cared more about missed chances than failure. Elon Musk used foundational thinking to build cheap rockets for SpaceX when everyone else said it was too expensive.