““She looked at him oddly. “Don’t you want to satisfy your curiosity? Now – and forever, for the one who’ll stay behind?” He thought about it, then shook his head. “One clone will see the finished city. One won’t. Both will share a past when they’d never even heard of the place. The clone outside, who never sees the city, will try to guess what it’s like. The clone inside will run other environments, and sometimes he won’t think about the city at all. When he does, sometimes he’ll misremember it. And sometimes he’ll dream about wildly distorted versions of what he’s seen. “I define all those moments as part of me. So … what is there to be curious about?””