BANKS weren’t much loved before 2007, and the bailing-out of a bunch of them in the financial crisis hardly helped endear them to the public. A slew of startups in the “fintech” space—short for “financial technology”—now reckon they can do better. Bright young things based in San Francisco, New York, London and Stockholm are raising billions of dollars in venture capital to “disrupt” financial services. With much brashness, these t-shirt-wearing whizz-kids are confident they will do to banks what digital photography did to Kodak and transistors to vacuum-tube makers. Will fintech succeed in killing off today’s financial services giants?