" Do you know the best thing about stars?' 'What?' 'They're all dead, but we can still see them. When we look up it's like we're looking at a million different memories, a million different versions of something that used to be. That's not romantic, either; it's just science.' 'It's a bit romantic,' I tried to argue. 'No, it's not.' she said. 'It's real, and that's what's important. "