In "Cloud Atlas" by David Mitchell, the narrative introduces the paradoxical idea that while the world may appear unchanged, profound transformations lie beneath the surface. This concept emphasizes the notion that progress and evolution occur in subtle ways, prompting readers to reflect on the interconnectedness of human experiences across different timelines.

The quote "Nothing has changed, except everything" encapsulates the essence of the characters' journeys and the broader themes of continuity and transformation throughout the novel. It suggests that despite the passage of time, the core human struggles and desires remain constant, even as the context and circumstances shift dramatically.