Eliding the imaginary totalizations of the eye, there is a strangeness in the commonplace that creates no surface, or whose surface is only an advanced limit, an edge cut out of the visible. In this totality, I should like to indicate the processes that are foreign to the ‘geometric’ or ‘geographic’ space of visual, panoptic or theoretical constructions. Such spatial practices refer to a specific form of operations (ways of doing); they reflect ‘another spatiality’ (an anthropological, poetic and mystical spatial experiment); they send us to an opaque, blind domain of the inhabited city, or to a transhuman city, one that insinuates itself into the clear text of the planned, readable city. Michel de Certeau