Why scale? Because certain human questions require more than a single life or one tidy arc. Identity, empire, technological hubris, ecological collapse, long-term justice — these themes are temporal and systemic. A “megavani” approach lets authors track consequences across generations, show how ideology calcifies into habit, and reveal the small inflection points that, compounded over centuries, become the architecture of fate. In such narratives, the novel becomes almost historiography: part myth, part social science, part moral experiment.