The Social Fabric features a display of avatars on a mobile device’s screen, representing individuals in a group of friends or acquaintances. The avatars use body language to show how recently you’ve contacted each person: Regularly contacted friends appear alert and look directly at you. Less frequent contacts might slouch and turn to the side, and infrequent contacts could have their backs turned.
Read more here, and then go call your mother. We can imagine this technology extended in various ways, as the non-salient is made more salient and memorable. Should wives not favor cell phones that tell the husbands when to call them? Or does this simply make one party feel more guilty and the other more aggrieved? There is surely an optimal degree of forgetting.