Engineer, investor, inventor, Elon Musk showed a precocious talent for business when at 12 he began earning money by selling the code for a video game called Blastar that he had created, to a computer magazine for $500. Now at just 46, Elon Musk has an estimated net worth of $20.6 billion and is the 80th wealthiest person in the world. Last year, Musk was ranked 21st on Forbes list of The World’s Most Powerful People.