thresholds at which visibility begins. They walk-an elementary form of this experience of the city; they are walkers, whose bodies follow the thicks and thins of an urban “text” they write without being able to read it. These practitioners make use of spaces that cannot be seen; their knowledge of them is as blind as that of lovers in each other’s arms.
Social space is an invisible set of relationships which tends to re-translate itself, in a more or less direct manner, into physical space in the form of a definite distributional arrangement of agents and properties (e.g between downtown ans subburbs).
This means that all the distinctions proposed about physical space can be found in reified social space.