Someday, you will be driving down a long, two-lane highway. There will be no other cars, no signs, no animals, not even any birds flying in the sky. Just you and the road, stretching for infinity through a barren desert. You can drive forever down this road, never wavering. You can turn around, and drive back, if you like. Nothing will happen. You will continue to drive on forever, never seeing an end. You will thank him and leave, getting into your car and driving away. If you glance back this time, the man will be pensive, looking away into the distance.