Communities are often built like forests – without a master plan. It all starts with one seed. Artists Jeroen Koolhaas and Dre Urhahn create community art by painting entire neighborhoods. The first colorful seed was planted in the favelas of Rio de Janeiro and ended up spreading throughout the world. Their success lies in involving those who live there, and throwing barbecues! Throughout their talk, you will be able to see most of the permaculture principles being put to use, almost step by step. They observed and interacted, accepted feedback, integrated rather tan segregated, found slow solutions, and valued the marginal amongst other things. For more about this inspiring project, check out Favela Painting.