"I’ve heard it argued—and I agree—that fiction that builds a universe whose rules depart from our own allows for the contemplation of ethical dilemmas that cannot be addressed in or by the world as we know it. This kind of fiction—what my toddler might call “same but different”—tends to disrupt our go-to feelings. In an alternate universe, you are moved to relitigate the basics because you cannot take anything for granted. The sun is black; the moon is pink; everything we know needs to be reevaluated—the facts of our lives and, by extension, the principles we hold dear. Similarly, fiction that distends what is real—that trucks in extremes—often allows us to see more clearly what’s wrong with the way things are now. In both cases we’re given space to reflect and reconsider."