This year’s event is structured around four key themes — habitat, ritual, transformation and utopia. These themes will be addressed by 32 leading Australian and international philosophers, activists, provocateurs and architects. The esteemed intellectuals include Australian actor Rachel Griffiths; UK retail and brand communication expert Mary Portas; and inventor of the 3D Weaving Machine, Oluwaseyi Sosanya. They’ll all be offering plenty of insight and constructive ideas throughout the day.