The concept of a city can be viewed as a constantly evolving system where both architects and users contribute to its design and redesign. While its framework may start with planners or designers, the character of the urban fabric is ultimately shaped by the societies and generations that inhabit it. The question of "city authorship" often arises in the context of masterplan design. Can architects and urban planners determine the extent to which a city will evolve through its initial design? The answer is no. User authorship then acknowledges that city planning should not be approached like building design, where designers attempt to predict every aspect of shape, pattern, behavior, and culture. Instead, it recognizes the role that people play in shaping the urban fabric through their personal taste in architecture, the development of neighborhood personality, and ongoing redesign that contributes to the story and spirit of a place. These factors should be considered in the initial design by engaging ideas related to future expansion, adaptable infrastructure, and empowering citizens to contribute to the city's architecture, thus making the city design democratic. This article explores conceptual radical cities where designers embrace the ideas of user authorship and the constant evolution of ephemeral architecture.
