Digital twins promise a city rendered available to observation and intervention through volumetric representation. Rose subjects that promise to a feminist critique of visualisation, asking what happens when complex urban life is made to appear fully knowable through technical images. Her intervention concerns the epistemic authority of representation: the apparent completeness of a model can conceal the situated choices, omissions and political assumptions on which it depends. The paper bridges visual culture, feminist geography and smart urbanism. Its importance for an archive of walking experiences is immediate. A map of thousands of trajectories may look comprehensive while excluding people who could not participate, temporalities that were not sampled and meanings that cannot be geocoded. Visualisation should therefore communicate provenance, incompleteness and contested interpretations, rather than stage the data as a transparent substitute for urban reality.