A City is not a Tree

[ABSTRACT] In 1965 Christopher Alexander wrote “A City is not a Tree”, in which he critiqued urban orders like those of Ludwig Hilberseimer that reduced the city to a collection of dichotomous, branching conditions. In 1980 Deleuze and Guattari continued the critique of the tree in A Thousand Plateaus when they propose the rhizome as an alternative to the tree: as a lateral, multiple system in which “any point can be connected to any other, and must be. This is very different from the tree, which plots a point, fixes and order.”