Nothing is real, everything is virtual.
Biographical Sketch Andrew Grimshaw received his Ph.D. from the University of Illinois at Urbana-Champaign in 1988. He then joined the University of Virginia as an assistant professor of Computer Science, and became associate professor in 1994. He is the chief designer and architect of Mentat and Legion , and the author or co-author of over 50 publications and book chapters. Research Gigabit networks make possible the realization of a single nationwide virtual computer comprised of a variety of geographically distributed high-performance machines and workstations. To realize the potential of the physical infrastructure, software must be developed that is easy to use, supports large degrees of parallelism in applications code, and manages the complexity of the underlying physical system for the user.