Building cities in space is an economic problem even more than a technical one. By taking a radically new approach to space engineering, we can now solve both problems. We can build cities in space. Peter has over 35 years of experience in space technologies from micro satellites to the International Space Station, and space businesses from Earth observation to communications. He is now dedicated to bringing the small, low-cost satellite revolution to deep space and making available resources from asteroids to fuel a large expansion of human presence in space This talk was given at a TEDx event using the TED conference format but independently organized by a local community.