Madeleine was invited to speak at the Karlsruhe Institute of Technology as part of the Faculty Talks series. Her lecture 'The Tipping Point' reflected on Filling the Void, the Masters studio she led as Visiting Professor, exploring how temporary installations, performance and participatory design can help communities test new ideas for vacant buildings and public spaces along the high street. The lecture was followed by a conversation with Professor Simon Hartmann about the role of design education in testing ideas in the public realm, using temporary interventions to bring together students, communities and the city in imagining new futures for vacant high streets.