Even when we are alone there is always an external other.

 aS TO THE QUESTION OF Metaphysics of presence"

 in the notion of auto-affection as pure self-touching   For Derrida, there is never a pure auto-affection, but always hetero-affection; there is what one could call an economy of exteriority such that there is an other inside our experience: we are always spaced, and there is always an external other