Money. It's a driving factor in our lives. But how often have you thought about those little green pieces of paper in your wallet and the idea that created it, or the digital zeros and ones in our banks and brokerage accounts that represent your money? Is it real, or simply a collective delusion?
 
Paul Vigna is a reporter for The Wall Street Journal, and has been a journalist for more than 25 years, as a reporter, editor, and photographer. He currently covers the cryptocurrency sector, including bitcoin, other digital currencies, and blockchain-related technologies. He is the author of “The Almightier: How Money Became God, Greed Became Virtue, and Debt Became Sin.”

Each week, “At the Money” discusses an important topic in money management. From portfolio construction to taxes and cutting down on fees, join Barry Ritholtz to learn the best ways to put your money to work.