cityplanet
Cityplanet is a term used in urban planning theory and science fiction to describe a city-scale settlement that occupies an entire planet or functions as a planetary-scale urban ecosystem. It is a speculative concept, proposed to address population density, resource scarcity, and climate risk by integrating architecture, infrastructure, and governance at a planetary magnitude.
Core design ideas include self-sufficiency, closed-loop cycles, and high-density, multi-layer habitats. Buildings and districts are arranged
Governance and economy are depicted as integrated and data-driven. Decision-making may be centralized for swift action
Infrastructure must manage planetary-scale utilities, climate control, and connectivity. Challenges include feasibility, planetary protection, political legitimacy,
The concept remains speculative but informs discussions in speculative design and future studies, offering a framework