[MyResearch] Cities viewed as problem solver (heuristics?)

After having a glance at The Information Architecture of Cities by L. Andrew Coward and Nikos A. Salingaros. I was wondering about the fact that they claim that "Cities can be viewed as information architecture systems". Why not now considering that if space is a resource for collaborative/distributed problem solving, we can hypothesize that cities offer nices features (or heuristics!) for collaborative problem solving ?