Why do some stories last forever while others fade the moment the curtain falls? Performance and presentation certainly plays a role, but in the final analysis it is the existence of an identifiable Storyform that truly determines the lifespan of a particular work of fiction.
A Storyform maintains the thematic explorations of a story. It supports the Author's argument (i.e., what they're trying to say) in such a way that it "covers all the bases". The amount to which a work of fiction completely explores a Storyform determines how successfully it will stay locked within the hearts and minds of the Audience.
Broken Stories (tales)