Is it time for a new kind of local economy in our cities, one that's based on people sharing their knowledge? Tessy Britton believes it is. Tessy and her colleagues at Civic Systems Lab are building a city framework where people can teach skills to those around them and learn new ones. It's part sharing economy, part neighborliness. I asked Tessy about the Civic Systems Lab and what she calls the 'new civic economy' she is helping to build.