On May 13 the best and brightest descend on Rotorua for the Sustainable Brands conference, the first time this global franchise will host a major event down under. Now in its 17th year, Sustainable Brands is a ‘community of optimists who believe in brand-led market transformation’. It takes a brave man to feel optimistic right now and perhaps even braver to run a conference. Vincent talks to SB’s NZ leader Lewis Patterson.