Technology has been one of the buzzwords for bankers at this year's World Economic Forum in Davos. Martin Arnold, banking editor, says top bankers he has met at the meeting are all talking about how technology is changing the face of both retail and investment banking,<br /><br />For more video content from the Financial Times, visit http://www.FT.com/video<br /><br />Subscribe to the Financial Times on YouTube; http://goo.gl/vUQx5k<br />Twitter https://twitter.com/ftvideo<br />Facebook https://www.facebook.com/financialtimes