Who is the richest person in the world? Not Bill Gates

After 13 years as the world's richest person, Bill Gates appears to have been dethroned. Mexican telecommunications tycoon Carlos Slim has taken the crown with a net worth of $67.8 billion, according to estimates by a respected financial news site in the country, as reported by multiple news services - because of a 27 percent surge in the stock price of Slim's wireless company, America Movil, in the second quarter.