
In 2023, ArchDaily's editor-in-chief sat down with Tarek Qaddumi, Executive Director of the Line Design at NEOM, at the closing of the Line Exhibition in Riyadh. Qaddumi described a layered, three-dimensional city organized around the idea of a "five-minute sphere" of access: walkable communities stacked vertically, connected by high-speed rail, freed from cars and conventional street infrastructure, and designed to coexist symbiotically with the surrounding natural landscape. It was a compelling vision, and in the context of the moment, it was simultaneously credible and appealing. For architects and urban thinkers grappling with the failures of twentieth-century city-building, the ideas articulated were worth engaging and planning.