The ZIGZAG® DATABASE and VISUALIZATION SYSTEM The true generalization of structure (still in prototype) • That's brilliant, to make a relation a dimension! --Heinz von Foerster, pioneering 1940s cybernetician Thanks for showing me your most intriguing way of displaying interconnections on a computer screen. I certainly hope that it catches on. -- (Sir) Roger Penrose, cosmologist, discoverer of Pen