It was of little importance whether this origin was considered fictitious or real, whether it possessed the value of an explanatory hypothesis or a historical event: in fact, these distinctions exist only for us; in a system of thought for which chronological development resides within a table, upon which it constitutes no more than a line of a certain length, its starting point is at the same time outside real time and inside it: it is the first fold that enables all historical events to take place.