Maria Popova over at Brain Pickings:
Considering the scientific definition of life as a process that “includes the capacity for growth, reproduction, functional activity, and continual change preceding death,” Gaiman argues that stories are alive — that they can, and do, outlive even the world’s oldest living trees by millennia:
Do stories grow? Pretty obviously — anybody who has ever heard a joke being passed on from one person to another knows that they can grow, they can change. Can stories reproduce? Well, yes. Not spontaneously, obviously — they tend to need people as vectors. We are the media in which they reproduce; we are their petri dishes… Stories grow, sometimes they shrink. And they reproduce — they inspire other stories. And, of course, if they do not change, stories die.
More here.