[Miguel] Alcubierre envision[s] a bubble in space. At the front of the bubble, space-time would contract, while behind the bubble, space-time would expand (somewhat like in the big bang). The deformations would push the craft along smoothly, as if it were surfing on a wave, despite the tumult around it. In principle, a warp bubble could move along arbitrarily quickly; the speed-of-light limitation of Einsteinís theory applies only within space-time, not to distortions of space-time itself. Within the bubble, Alcubierre predicted that space-time would not change, leaving space travelers unharmed.
I was tempted to post this in the Webmaster Hardware forum ;)