The concept of 'digital twins' has evolved from its industrial origins into a powerful tool for urban planning. A digital twin is a virtual replica of a physical system, continuously updated with real-time data. In cities, this allows planners to simulate the impacts of new infrastructure, traffic flows, or even climate events before implementing changes. However, the effectiveness of digital twins hinges on data quality and integration. Inaccurate or incomplete data can lead to flawed simulations, potentially exacerbating existing urban inequalities. Moreover, the reliance on vast data sets raises concerns about privacy and surveillance. Proponents argue that digital twins offer a cost-effective means to test 'what-if' scenarios, fostering more resilient and sustainable cities. Yet, critics caution that over-reliance on technological models may overshadow the nuanced, lived experiences of residents, which are difficult to quantify. Ultimately, the success of digital twins in urban governance will depend not only on technological advancement but also on transparent, inclusive decision-making processes that address these ethical and social dimensions.