Fluxus

Is there a 'deep grammar' process at work in urbanism? Is there in the interaction between the history of architecture and the continuum of architectural reality, a DNA of urbanism? I find that in the old world, Beaux Arts 'statics' rule, while in the new world 'nomad science' rules and urban 'design' is necessarily fugitive and non-figurative; producing a surface world—a windscreen world.