The trace left behind is substituted for the practice. It exhibits the (voracious) property that the geographical system has of being able to transform action into legibility, but in doing so it causes a way of being in the world to be forgotten.

Can the vast technology beneath our gaze be anything but a representation? Any optical artifact... The city panorama is a theoretical (ie visual) simulacrum: in short, a picture, of which the preconditions for feasibility are forgetfulness and a misunderstanding of processes.

The sick man must follow his illness to the place where it is treated... He is set aside in one of the technical and secret zones (hospitals, prisons, refuse dumps) which relieve the living of everything that might hinder the chain of production and consumption, and which repair and select what can be sent back up to the surface of progress.

An absence of meaning opens a gap in time.

It seems possible to give a preliminary definition of walking as a space of enunciation.

Places are fragmentary and inward-turning histories, pasts that others are not allowed to read, accumulated times that can be unfolded but like stories held in reserve, remaining in an enigmatic state, symbolizations encysted in the pain or pleasure of he body. 'I feel good here': the well-being under-expressed in the language it appears in like a fleeting glimmer is a spatial practice.

More than its utilitarian and technocratic transparency, it is the opaque ambivalence of its oddities that makes the city livable.