From the point of view of everyday language, it seems obvious that every use of "I," "You," "She/It/He" presupposes the existence of the "I" in relationship with the "other." The other can be either ourselves, in a dialogue with ourselves, or with some external other, the reader or the listener. With this we generally assume that the other has some understanding of what we address to him or her. No claim is made that the other always understands what is addressed to him or her. We only assume that there is a possibility of them understanding us, even if it's not a perfect understanding.