It is this status of a necessary social production, I argue, that makes
knowledge surrounding mobility (like that surrounding other fundamental
geographical concepts such as space and place) so important and so
deeply implicated in the politics of the modern world. Stasis and mobility,
fixity and flow, are the subjects of deep knowledges that inform any number
of ways of seeing the world. For this reason, an understanding of the
ways in which ideas about fixity and flow provide a profound undercurrent
to thinking (which is closer to the surface of cultural life—law, medicine,
activism, film, photography, planning, architecture, philosophy, and
even geography itself) enacts a critical geosophy. It enables us to examine the role of geographical knowledges in the always political and always
differentiated production of social life.