(2) Outer space. Because the vast reaches of outer space represent a limitless frontier, they also represent a limitless possibility for escape from world politics. But the final frontier still has a barrier to entry: Rocket technologies have seen only modest advances since the 1960s, so that outer space still remains almost impossibly far away. We must redouble the efforts to commercialize space, but we also must be realistic about the time horizons involved. The libertarian future of classic science fiction, à la Heinlein, will not happen before the second half of the 21st century.