Often thought of in somewhat static, explanatory terms, the typical architectural diagram is used as a form of shorthand to succinctly communicate condensed information about a project and/or its conditions. In this way, the diagram functions as kind of coding device. Contrary to this typical coding function, Georges Teyssot describes the potential of a diagram that functions not as a code (mould) but rather as a modulator: ‘while molding leads to a permanent state of things, modulation introduces the factor of time’.4 Modulating is simply, as Deleuze says, ‘molding in a variable and continuous manner’.5 Critical to the modulating function is a degree of indeterminacy, which allows a diagram to be both responsive and flexible.