Is our future underground?

This podcast episode explores the past, present, and future of underground living. It begins by examining ancient and modern-day underground cities, including Coober Pedy, Australia, and Derinkuyu, Turkey. It then moves on to the benefits of underground living, such as protection from the elements and energy efficiency. The episode also explores the potential of underground cities as a solution to climate change and urban crowding, discussing the construction of these cities, as well as their challenges and benefits. Additionally, the episode discusses the creative ways underground spaces are being used, such as for tourism and retail, and the plans for Seoul's Light Walk, a subterranean thoroughfare that will create recreational areas for people underground.