I imagine the feelings of two people meeting again after many years. In the past they spent some time together, and therefore they think they are linked by the same experience, the same recollections. The same recollections? That's where the misunderstanding starts: they don't have the same recollections; each of them retains two or three small scenes from the past, but each has his own; their recollections are not similar; they don't intersect; and even in terms of quantity they are not comparable: one person remembers the other more than he is remembered; first because memory capacity varies among individuals (an explanation that each of them would at least find acceptable), but also (and this is more painful to admit) because they don't hold the same importance for each other.