QUOTE : IN ARCHITECTURAL ECHO of service pyramid theory, the Shorn block had rented out its bottom two levels to a series of shopping and eating units that collectively went under the name Basecamp. According to the Shorn promotional literature that Chris had read, Basecamp provided employment for more than six hundred people and, together with the Shorn-owned vehicle repair shops in the basement, was a working embodiment of the virtues of trickledown wealth creation. Prosperity spread out from the foundations of the Shorn block like vegetation from an aquifer, said the literature warmly, though the metaphor that occurred to Chris was water leaking from the cracked base of an old clay flowerpot. Wealth, in his experience, was not something the people who had it were at all keen to see trickling anywhere.