Houses stretched off on all sides, sometimes dipping below the ground and sometimes emerging out of it, piling themselves into pyramids, into almost toppling waves, never one rooftree more than eighty yards from the next. The planet was covered. There were the old, open-air cities planted with whatever would grow, mountains honeycombed, resorts in Antarctica, covered roads crammed with carrier traffic only, hovercraft, sea-craft, masses, structures, and installations under the sea, nets of algae towed in the air, some insects and no animals whatever, but people, people, people everywhere. What's the opposite of the Garden of Eden?