The mathematical models that Eisenman is rejecting include the linear, static and deterministic models that dominate traditional architecture theory. He states that static conditions in traditional arch theory of figure/ground are not able to explain true complexity in the urban condition. He believes that a new reading, from another frame of reference, of figure/ground is needed to expose immanent and unseen conditions that allow for new urban structures.

Time of experience has changed, and a new time, conditioned by the discontinuity and autonomy of the sound bite, prevails. Eisenman states that architecture can't be bound by static conditions any longer, and the current situation requires that architecture deals with the Event. He suggests that the fold, which breaks the Cartesian order of space and allows for a temporal multiplicity of conditions, has the potential to reinterpret urbanism and allow for new events to unfold from the immanent conditions of existing urbanisim.