Jon Geib is an urbanist and architect whose doctoral work explores the potential of multivocality in the designer’s engagement with the city, in view of the themes of dialogue, participation and public space. The aim is to reorient concern along hybrid cultural, artistic and activist trajectories, towards values in processes as well as transformative results. Poetic frames, speculative urban designs and experimental prototypes for public policy act as ‘dialogical infrastructures’ geared to animate a cosmopolitan public culture.