And in fact, interaction design is what I've been trying to insert in the collection of the Museum of Modern Art for a few years, starting not very timidly but just pointedly with works, for instance, by Martin Wattenberg -- the way a machine plays chess with itself, that you see here, or Lisa Strausfeld and her partners, the Sugar interface for One Laptop Per Child, Toshio Iwai's Tenori-On musical instruments, and Philip Worthington's Shadow Monsters, and John Maeda's Reactive Books, and also Jonathan Harris and Sep Kamvar's I Want You To Want Me.