In the this extract from 2011 documentary Urbanized, Pritzker Prize winner Alejandro Aravena explains his approach to social housing with his architecture "do tank" Elemental.

Dutch architect, theorist and professor John Habraken (*1928) is one of the most controversial architects of his generation. Whereas some people revere him as a guru, others denounce him as a technocrat. In order to begin to grasp this person, who according to friends as well as foes has had «one good idea in his life», the film invites the viewer on a discovery-journey through Habraken’s body of thoughts. In conversation with Habraken, his friends and other people who have observed him from a distance the bits and pieces add up to a whole. In the end not only does the viewer encounter the various levels of Habraken and his «one idea», but also a fundamental redefinition of the role of the architect is revealed.