Ryan evaluates two accounts of the intersection between global urbanisation and digital visibility. His iconic concern is that new mapping and information technologies multiply representations of the city without necessarily producing new urban theory. The theoretical contribution lies in distinguishing the abundance of cases and images from a genuine reframing of the city–technology relation. Distributed Urbanism reveals geographically dispersed transformations and capitalist residues, while The Exposed City traces techniques for rendering hidden systems visible; yet both risk allowing cartographic novelty to substitute for conceptual precision. Methodologically, Ryan uses comparative review as a critical instrument, testing coherence, explanatory ambition and the relation between examples and claims. The conceptual operation is evidential discrimination: visibility is treated as insufficient unless it alters how urban processes are understood. The wider bridge reaches digital urbanism, critical cartography, media studies and urban design. Information technologies may expose flows and residues, but exposure becomes intellectually consequential only when linked to power, history and uneven development.
