Jason Ballard, the CEO and co-founder of 3D printing architecture company ICON, doesn't mince his words. "There are certain people who are content to build a really ugly or uninspiring world," he said. "We're not. The day I walk outside and see something ugly being built by one of my robots -- that's a nightmare scenario for me." Ballard, a quick-talking Texan in a 10-gallon hat, has a vision for the future of architecture.