Networks Don't Grow Forever -- Not Even Social Networks - Jeff Stibel - Harvard Business Review
Michael Simmons stashed this in How To Be A Super Connector
"All networks grow according to Metcalfe’s Law until they hit a point of critical mass…and then they stop growing because the value equation changes.""Like the brain, a social network at critical mass enables higher level functioning: better communication, interaction and even consciousness. We can even see a “collective consciousness” emerging among some of the stronger social networks. So social networks should temper their growth to allow richer connections. The real power of a network does not lie in its growth, but in its stability: when the network reaches a point where higher level functioning can develop."