"On the world where I'm from, there's more land. Not islands...land like ten thousand islands, all joined together. Without the volcanoes you see everywhere. With fewer volcanoes, the earth shakes less often, and the gigantic waves don't come." Ivy began to explain, smiling. "With that much land, they clear it and plant trees for fruit, grasses that can be eaten. They farm it and one man can feed a hundred off of his work, if not more. Others, no longer needing to grow food,<em>make</em>things. Artisans, many of them. They dig stone and shape it for building homes. They find metal, and forge it into the bones that hold the towers aloft. We have ships that move themselves, that can carry immense cargoes, to take things from one place to another. It's simply<em>that</em>different. Your own ancestors<em>came</em>from such a place."