The ride was wild. They screamed past rockfaces and hurtled over the broken terrain at far greater speeds than Andy would have dared in a real-world machine. The human mind could guide a terrain-following program only so fast. They pushed the envelope, weaving among the buttes almost too fast for even the powerful Montjoy engines to keep inertia from smearing them on a rockface. Andy hadn’t expected Russ to jam things so hard, but he wasn’t going to complain. The only thing better than what they were doing would be to rig one of these babies over such a course for real. Andy was having the time of his life.