From Paul McAuley's "When It Changed":
- "disaster is so complete and overwhelming, and so sudden, that it forms a distinct and abrupt break with its past (our present)." He lists several examples.
- "The catastrophe is not caused by one thing but is woven from many causes. And these do not cause an abrupt change and a clean break with the past, but drive a slow and complex process of transformation with an unclear endpoint... They tends towards the satiric mode; lean towards the dystopian but don’t entirely embrace it." Examples: "Bruce Sterling’s Distraction, my own Fairyland."