IAAC Faculty Areti Markopoulou (Director R+D IAAC) and Tomas Diez (FabLab Bcn Director) talked last Saturday at TEDx Thessaloniki in Greece. Under the theme The Courage to Create Areti and Tomas talked about new methods of production based on Computer Numerically Controlled machines and the idea of Personal Fabrication. Showing projects of IAAC and Fab Lab Bcn they debated on how can we change economical and social models by changing the ways we consume and produce in our current cities, how can we empower the citizens with offering tools and knowledge for collective innovation to occur.