Courtney welcomes to the podcast Greg Lindsay, who visited Chicago in March for the 2018 National Shared Mobility Summit, and the two grapple with how developments in technology are radically changing cities and affecting the work planners do across the country. As a journalist, urbanist, futurist, and speaker, Greg thinks constantly about cities, and he argues that we've chosen to make living in the dense urban core a luxury good. Greg is also a senior fellow at NewCities and the director of strategy of its offshoot LA CoMotion — an annual urban mobility festival in the Arts District of Los Angeles — as well as the coauthor of the book Aerotropolis: The Way We'll Live Next, which Courtney and Greg discuss. The phenomenon of co-working and co-living spaces, tactical urbanism, and the equity implications of certain technologies also make their way into this dynamic conversation.