memory "It is because of différance that the movement of signification is possible only if each so-called "present" element, each element appearing on the scene of presence, is related to something other than itself, thereby keeping within itself the mark of the past element, and already letting itself be vitiated by the mark of its relation to the future element, this trace being related no less to what is called the guture than to what is called the past, and constituting what is called the present by means of this very relation to what it is not: what it absolutely is not, not even a past or a future as a modified present."
Jacques Derrida, "Différance"
investment