Our guest this week is Robin Wigglesworth. Robin is the Financial Times' Global Finance Correspondent based in Oslo, Norway. He covers investing in markets with a focus on technological disruption and quantitative investing. He joined the FT as a Gulf correspondent in June 2008. Before that, he was a Nordic economics and politics correspondent for Bloomberg News. Robin is a graduate of City University London and received his master's in history of international relations from the London School of Economics and Political Science. Robin is here to discuss his new book "Trillions: How a Band of Wall Street Renegades Invented the Index Fund and Changed Finance Forever."