The bells of St. Mark’s were ringing changes up on the mountain when Bud skated over to the mod parlor to upgrade his skull gun. Bud had a nice new pair of blades with a top speed of anywhere from a hundred to a hundred and fifty, depending on how fat you were and whether or not you wore aero. Bud liked wearing skin-tight leather, to show off his muscles. On a previous visit to the mod parlor, two years ago, he had paid to have a bunch of ‘sites implanted in his muscles—little critters; too small to see or feel, that twitched Bud’s muscle fibers electrically according to a program that was supposed to maximize bulk. Combined with the testosterone pump embedded in his forearm, it was like working out in a gym night and day, except you didn’t have to actually do anything and you never got sweaty. The only drawback was that all the little twitches made him kind of tense and jerky. He’d gotten used to it, but it still made him a little hinky on those skates, especially when he was doing a hundred clicks an hour through a crowded street. But few people hassled Bud, even when he knocked them down in the street, and after today no one would hassle him ever again.
The Diamond Age. Neal Stephenson.