The following account was recorded in the agent's log during your transmission: Uh, massive chunks of concrete are being levitated by thick, hydraulic excavator arms, somehow constructing an elevated highway in mid-air above a sprawling metropolis. The late afternoon sun beats down on the steel girders and dusty highway surface, casting no shadows on the ground far below. Air is thick with diesel fuel and the distant hum of idling construction equipment. A lone bird perches on a girder, chirping softly as a gentle breeze carries the smell of asphalt through the still air.