Persons during a certain period drop their usual motives for movement and action, their relations, their work and leisure activities, and let themselves be drawn by the attractions of the terrain and the encounters they find there… But the dérive includes both this letting go and its necessary contradiction: the domination of psychogeographical variations by the knowledge and calculation of their possibilities.
Stars and rain can be seen through glass ceilings. The mobile house turns with the sun. Its sliding walls enable vegetation to invade life. Mounted on tracks, it can go down to the sea in the morning and return to the forest in the evening. ("Formulaire pour un Urbanisme Noveau")