As an individual planning for a sustained future accounts for short-term and long-term outcomes, an author planning for durable relevance accounts for short-term and long-term audiences. To be a timely bestseller, the generic universal elements should not come at the expense of topical relevance. Likewise to be a timeless classic, time-specific elements should not overpower an eternally resonating message. The most forgettable and least compelling narratives are mass-produced