Maps made of compounds of people's experiences of space; combine these maps, so a map of best coffee crosses over a map of places you've smoked. What chooses which maps overlay and combine? Is physical space the best structure to build maps on? (See more Tufte) Or is it just an emerged convention to describe places in absolute terms? Harry Beck's
tubemap was about imposing nodal and structural imperitives in place of absolute spacial positioning. In complex urban environments, does absolute space mean anything anymore? Or is space really to do with the connections and opportunities it provides?