Jacques Derrida's philosophy -
Logic of supplementarity: "Temporal loop by which things happen later in a sequence are understood as the origins of things from which they apparently originate."
Ex. "If we apply this logic to the case of digital video recording, its structure becomes apparent, since the event being recorded often comes into being only as a recording, or as something to be remembered...The same thing happens if I go to India so that I won't regret not going, or because I want to have been, or because I envisage the stories of adventure that I might tell. A possible future produces the event to which it is said to be added on, or the archive produces the event as much as it records it."
- pg. 42, About Time, Mark Currie explaining Derrida
'Logic of Supplementarity' is Derrida's term for the idea of doing something not for the sake of the activity itself, but for the memories, stories, reflections, narratives, or documentation the activity will produce. An easy example of this is standing on the edge of a cliff, just so that you can take a new profile picture for your Facebook. In any case, it seems there are a lot of activities in which one engages just so that one can talk later about completing the activity. You do something for the future, not for the present.
Derrida then goes on to point out that this documentation - photo, memory, whatever it may be - actually creates the activity. The future becomes the origin of the present.