I’m writing this in my small office cubicle in Uchūden, which is by definition Shell 1. As perquisites of rank I do have a cot that folds down from the wall and an actual window to the outside—on the floor, of course. I can either watch the stars wheel by once each thirty-three seconds or flip on a revolving mirror that keeps the stars stationary for fifteen seconds at a time. I like to watch them roll.

That concentric-cylinder model is just a theoretical idealization. You’d go crazy, living in a metal hive like that. So the walls and ceilings are knocked down and conjoined in various ways to give a variety of volumes and lines of sight. Most people still spend a certain amount of time hopelessly lost, since only a few hundred of us lived here while it was being built, and have had time to get used to it. New New was laid out logically, the corridors a simple grid on each level, and it was impossible to get lost. ‘Home is deliberately chaotic, even whimsical, and is supposed to be constantly changing. Only time will tell whether this will keep us sane or drive us mad.

Still, the longest line of sight is only a couple of hundred meters, looking across the park. It’s a good thing that almost all of us grew up in satellite Worlds. Someone used to the wide open spaces of Earth would probably feel trapped by ’Home’s claustrophobic architecture. In most corridors, for obvious instance, the floor curves up in two directions, cut off by the low ceiling in twenty meters or less—a lot less, up in 5 and 6. Of course you can look out for zillions of light-years if you have a window like mine, but for some reason some people don’t find that relaxing.

Both of my husbands were born on Earth, but spent enough years in New New to have lost the need for long lines of sight; distant horizons.

I do miss horizons, vistas, from my three visits to Earth. The first couple of weeks I spent there I had a hard time adjusting to the long lines of sight, even though I was in New York City, which most groundhogs would consider crowded. I would look up from the sidewalk and see a building impossibly far away and lose my balance.

I remember flying over kilometer after kilometer of forest, ocean, farmland, city. The Pyramids and the Rockies and Angkor Wat and even Las Vegas. We live inside one of the largest structures ever built, surely the largest vehicle—but we’ll never see anything big for the rest of our lives.

At least Dan and John and I have memories. Evy and nine thousand others just moved from one hollow rock into a newer one. Maybe they’re the lucky ones, I have to say, conventionally. I wouldn’t trade places.