What is bitcoin, and how do you get rich off of it? In his new book "The Accidental Billionaires," author Ben Mezrich tells the story of how the Winklevoss twins — known to most as the brothers who sued Mark Zuckerberg for supposedly stealing their idea for Facebook — went on to became "bitcoin billionaires."

Jim Braude was joined by Ben Mezrich to learn more about this new and growing form of investing.