For believers in the power of culture, the UNESCO Creative Cities Network (UCCN) initiative might be the most exiting thing they’ve never heard of. It sounds like a simple enough idea. Connecting cities through mutual interests in culture. Dialogue is encouraged. Artists share ideas across borders. One city’s success can inspire another’s. That’s broadly the mission. But it’s complicated. The network was established in 2004 to foster international cooperation and use culture and creativity as a driver for sustainable urban development. Since Edinburgh kicked off the programme in 2004 as a City…