Dyson showed that a computer could go through an infinite number of
compute cycles starting with a finite energy store. But various such
computers would find it increasingly expensive to communicate with
each other, as the distance between them increased. Tipler's Omega
Point allows all these computers to communicate more cheaply as time
goes on.
Robin Hanson hanson@hss.caltech.edu http://hss.caltech.edu/~hanson/