the dark precursor relates differences externally and produces a ‘shadow identity’ – a prefiguration which conceals internal difference in representation and therefore is critically and analytically essential

A moiré is an interference pattern that emerges when two fabrics or grids are brought together and superimposed, one on top of the other. The pattern that emerges is the difference between the two patterns. For Deleuze, differenciation occurs when two series are brought together in such a way that
Simon Taylor