Goldman Sachs has been one of the world’s leading commercial banks for more than a century. But three years ago, the company decided to enter the consumer banking arena. It launched Marcus – a branchless, online bank that provides personal loans and savings accounts. Goldman’s Head of Digital Finance, Harit (har-RITT) Talwar (TALL-wahr) shared the lofty goals for Marcus at Fortune’s Brainstorm Finance in June.