Aspen Ideas Fest speaker Greg Lindsay Senior Fellow and Director, Emergent Cities Project, World Policy Institute; Co-Author, Aerotropolis: The Way We'll Live Next
Also, students from Denver North High School, winners of this year's Aspen Challenge, who presented at the Aspen Ideas Fest
http://www.aspenideas.org/speaker/greg-lindsay
http://www.aspeninstitute.org/policy-work/challenge