The conceptual passage, if one may say so, in this argumentation between the extension of the body (which is easy for common sense to apprehend, which is an essential attribute of the corporeal substance for Descartes and the eidetic component of any material thing and any transcendent and tangible res for Husserl) and the extension of the psyche or thinking (which is a paradoxical extension resisting intuition, perception, and consciousness) is what exceeds any measure in them both—and therefore exceeds common measure. That is their common in commensurability. This incommensurability—as incommensurability of extension, as incommensurability between two ways of being extended, two spaces or two spacings—goes through a thinking of place [lieu], as a place or locus that is reduced neither to objective extension nor to objective space. This place must be spacing before it is space; it must open an opening, as it were, an interval, which is to say an apparently incorporeal, though not intelligible, extension—thus neither sensible nor intelligible.