With their ideas rooted in Marxism and the 20th century European artistic avant-gardes, they advocated experiences of life being alternative to those admitted by the capitalist order, for the fulfillment of human primitive desires and the pursuing of a superior passional quality. For this purpose they suggested and experimented with the construction of situations, namely the setting up of environments favorable for the fulfillment of such desires. Using methods drawn from the arts, they developed a series of experimental fields of study for the construction of such situations, like unitary urbanism and psychogeography.