Professor of European Integration at the University of Athens, Loukas Tsoukalis looks into the reasons behind the successive crises in the EU in recent years. Does the European Union suffer from overstretch? Was the creation of the euro a terrible mistake that is now almost impossible to undo, or is the European project just the victim of collateral damage caused by globalisation and the technological revolution? We first need to understand what went wrong in recent years. But we also need to understand what keeps the Union together in times of big crisis and against the predictions of all kinds of doomsayers. Will the more favourable economic and political environment lead to a new relaunching of European integration? This public lecture was held as part of the Sydney Ideas program, copresented with the Sydney Democracy Network on 26 October 2017: http://sydney.edu.au/sydney_ideas/lectures/2017/professor_loukas_tsoukalis.shtml