KM3 is the story about a world that is densifying. KM3 is a city that is continuously under construction, with space for limitless populations and possibilities. A city that continues to serve all desires, that enlarges our capacities. Beyond scarcity. Beyond separation. Beyond pessimism and protectionism. A city that will lead to a new programmatic “skin” around the globe, swelling beyond the horizontal, surging vertically. The 3D City. A free fall in endless space. Pure depth. Without escape. Yet. KM3 is a hypothesis, a theoretical city, and a possible urban theory.