Maybe its most useful to think of this as sort of an "isometric" 3D rendering, because this extra dimension is usually only exposed to the user modally: the thi

Maybe its most useful to think of this as sort of an "isometric" 3D rendering, because this extra dimension is usually only exposed to the user modally: the third dimension is whatever site you happen to be visiting at the present time. By 2D I was mostly referring to the interface, which is a "matrix", and commenting on how that particular metaphor makes managing a complex request blocker a much better experience.