Oh I absolutely agree. Can we leave the bushistas on earth though?
Hawking figures that our species could be wiped out by an asteroid or a nuclear war, so we should set up colonies on other planets. We obviously can't travel to another solar system by conventional methods, so don't pack your bags just yet.
We could get elsewhere "by using "matter/antimatter annihilation", velocities just below the speed of light could be reached, making it possible to reach the next star in about six years."