This is a model that describes a universe comprised entirely of points (0-dimensional objects) and time. The underlying mechanism of this model is very simple: any object is a collection of point-time constructions. A construction of a higher order can be accomplished through a kind of 'time exposure' of an object of a lower order. Let me illustrate: Think of one of the tail lights in http://img60.imageshack.us/img60/1807/1ld2.jpg [Broken]. Likewise, when a line is exposed to time its time exposure creates a rectangle. And a rectangle creates a rectangular solid in time exposure. A shape can therefore be thought of as a cross-section exposed to time. http://img148.imageshack.us/img148/7158/2gl4.png [Broken] (time exposure is from left to right) Note that, while a cube in our perception is the very unit of substance and form, it is nothing more than a point and some time in this model.