Manuel Toledo-Otaegui is an industrial and public space designer and co-founder of the Architecture Film Festival in London and Santiago, Chile. He grew up in Santiago toward the end of the 17-year military dictatorship of Augusto Pinochet - a ruler notorious for large-scale torture, killings and abuses of human rights. Manuel talks to Matt Quinn about the long-term effects of the dictatorship on Chilean society, how it affected the use of public space and muralism in Santiago and the events leading up to a recent uprising, spurring an historic re-writing of the constitution.