originally found at Colossal
Designing for interaction does not have to live on screen. In fact, the best instances of interaction happen when you go old-school and let people ... interact with their surroundings.
In a recent re-installation of his 1949 Nowhere and Everywhere at the Same Time, artist William Forsythe hangs weighted bob points from thin string lines, and invites visitors to navigate through the resulting field without touching any of the bobs. The design is dynamically complex, made possible through a visually simplistic solution.