If the 19th century was about discovery and the 20th century about obtaining efficiency, then the 21st century will be about living with complexity. Complex adaptive systems are so big and interconnected that any interference with their workings causes unpredictable side effects. In these systems (such as a city) you are almost always dealing with situations that need to be addressed and rarely with problems that can be solved. For this new way of working, where every step forwards needs to be taken with caution, we need a new method, a new language and a new approach. The finding and fine-tuning of this way of working with the world was what for me the UrbanIxD summer school was about.
The challenges for cities are many: what should they expect from technology? How will the networked computer change the way we work? What are the possibilities and limits of urban change in a democratic framework? What about our environment and resources, and how can we include other people, legislations and resources in this challenge?