Here is a video from designer Timo Arnall that visualizes the information infrastructure of a city. Each dashed circle represents a wireless network. They emanate from office building hot spots, routers in apartments, and pocketed mobile phones. It forms a net over the urban space.

(See the video here)

We don’t often see how pervasive technology is in out lives. It is easy to measure the advance of technology by iterations of devices, but perhaps equally important has been how we have been able to conquer the space between.