One day, a part of the city moved that shouldn’t have. Mistaking it for an earthquake, the half-dozen people there wobbled to brace themselves with flailing arms. The shaking went on for a few seconds. Gradually, they tucked their arms back in place and looked around. Near and far, skyscrapers arranged neatly against the blue sky cast thick, uniform shadows in the bright sunlight. Below, two roads met at a perpendicular intersection, and traffic rolled along, a few pedestrians on either side.
