http://markproffitt.com Predictive Innovation for Business & Society Fri, 03 Feb 2012 18:03:55 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 http://markproffitt.com/2010/01/23/why-we-don%e2%80%99t-have-flying-cars-yet/ http://markproffitt.com/2010/01/23/why-we-don%e2%80%99t-have-flying-cars-yet/#comments Sat, 23 Jan 2010 22:29:24 +0000 Mark http://markproffitt.com/?p=586 http://markproffitt.com/2010/01/23/why-we-don%e2%80%99t-have-flying-cars-yet/feed/ 2