In this podcast, Cathi Bond talks about architect Vincent Callebaut's cool, sustainable, luxury condo project. Will this be the way of the future for condos that aren't on the luxury end too? See more of Callebaut's projects here. Nora Young talks about new research suggesting just how good - and fast - humans are at visually distinguishing reality from unreal images. What does this mean for virtual reality design, as well as the design of robots?