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The concept of 'digital twins' has gained significant traction in recent years, particularly in the field of urban planning. A digital twin is a virtual replica of a physical entity, such as a city, that is continuously updated with real-time data from sensors and other sources. This allows planners to simulate various scenarios, such as traffic congestion or the impact of new infrastructure, without disrupting the actual environment. However, the effectiveness of digital twins relies heavily on the quality and integration of data from disparate systems. Moreover, ethical concerns arise regarding privacy and surveillance, as detailed data on citizens' movements could be misused. Despite these challenges, proponents argue that digital twins offer an unprecedented opportunity to create more efficient and sustainable urban environments, provided that robust governance frameworks are established.