Elon Musk once lived on just $1 a day, surviving on hot dogs, oranges, and cheap pasta to test his resilience when he first arrived in America. This experience was crucial in shaping his mindset, allowing him to take bigger risks without fear. Today, Musk is worth over $450 billion and leads innovative companies like Tesla, SpaceX, and Neuralink. His story illustrates that success depends more on one's determination and effort than their starting point.