Entrepreneurship is a scary thing for most people. Dealing with the uncertainty of finding your own work and earning your own wages is unsettling at best, but petrifying at worst.
Let's look at 30 of the most genius entrepreneurs who took the plunge and came out way on top.
But his real successes unfolded a decade later when Musk became involved with car manufacturer Tesla. He's also the mind behind SpaceX, a company that manufactures space launch vehicles aiming to advance rocket technology.