Dan Hill is a designer and urbanist. He works for Sitra, the Finnish Innovation Fund, in their Strategic Design Unit in Helsinki, exploring how design might enable positive systemic change throughout society. Prior to Sitra, Dan was an Associate at Arup, Web & Broadcast Director for Monocle, and Head of Interactive Technology & Design for the BBC. He writes the blog cityofsound.com, as well as being Interaction Design Editor for Domus magazine. His essays feature in Sentient City: Ubiquitous Computing, Architecture, and the Future of Urban Space, Mark Shepard (ed.) (Architectural League & MIT Press, 2011), Best of Technology Writing 2009, Steven Berlin Johnson (ed.) (Yale University Press, 2010), and Actions: playing, gardening, recycling and walking, Mirko Zardini (ed.) (Canadian Centre for Architecture, 2008).