2
How might these urban tribes form a network across a city? These networks rely heavily on weak ties...the shadow ties, people we don’t know yet, but people who will come into our lives within a year. Certainly, when I looked at my life, it became very clear that I managed my life in the city by utilizing my network in the city. It really is the way we navigate city life. This is valuable to the individual, but how is it useful for the community at large? The shadow tie is the social science equivalent of dark matter. It creates a force that’s difficult to see but holds everything together.9