What strikes me in all of my work is that we are organizing ourselves in urban tribes more and more. Now, how can we mobilize urban tribes and unleash the power of the collective and create a stronger sense of belonging? Around this question I have started an innovation lab, Urban Tribes, by using the methodology of Theory U. The process of this lab will be communicated via a website, social media, resulting in a book. My visit to Australia is the beginning of my journey.