This plus-one/minus-one business was new to him. It had been a mere four days since he'd been up here, but like so many other of his visits, they'd made major rehabs to their ride in the amount of time it would have taken Imagineering to write a memo about the possibility of holding a design-review meeting. He velcroed his camera's wireless eye to his lapel, tapped the preset to correct for low light and motion, and hit the joystick. The wheelchair stood up with wobbly grace, and began to roll forward on two wheels, heeling over precipitously as it cornered into the main space of the ride. The gyros could take it, he knew, but it still thrilled him the way that a fast, out-of-control go-kart did, miles away from the safe rides back in Disney. The chair screeched around a corner and pulled into the first scene, a diorama littered with cross-sectioned cars. Each one was kitted out with different crazy technologies -- dashboard gods that monitored and transmitted traffic heuristics, parallel-parking autopilots, peer-to-peer music-sharing boxes, even an amphibious retrofit on a little hybrid that apparently worked, converting the little Bug into a water-Bug. The chair swooped around each one, pausing while the narration played back reminisces by the inventors, or sometimes by the owners of the old gizmos. The stories were pithy and sweet and always funny. These were artifacts scavenged from the first days of a better nation that had died a-borning. Then on to the kitchen, and the bathrooms -- bathroom after bathroom, with better toilets, better showers, better tubs, better floors and better lights -- bedrooms, kids' rooms. One after another, a hyper museum. The decor was miles ahead of where it had been the last time he'd been through. There were lots of weird grace-notes, like taxidermied alligators, vintage tourist pennants, chintz lamps, and tiny dioramae of action figures. He paused in front of a fabric printer surrounded by custom tees and knit caps and three-d video-game figurines machine-crocheted from bright yarns, and was passed by another chair. In it was a cute woman in her thirties, white-blond shaggy hair luminous in the spotlight over the soft-goods. She paused her chair and lovingly reached out to set down a pair of appliqued shorts with organic LEDs pulsing and swirling around the waistband. "Give it a plus-one, OK? These were my best sellers," she said, smiling a dazzling beach-bunny smile at him. She wheeled away and paused at the next diorama to set down a doll-house in a child's room diorama. Wow -- they were getting user-generated content in the *ride*. Holy crap. He finished out the ride with a keen hand on the plus-one/minus-one lever, carefully voting for the best stuff and against the stuff that looked out of place -- like a pornographic ceramic bong that someone had left in the midst of a clockwork animatronic jug-band made from stitched-together stuffed animals.