The quote from David Mitchell's "Cloud Atlas" reflects on the nature of revolutions and their perception before and after they occur. Before a revolution, it is often seen as a radical idea or a distant possibility. People may debate its necessity or likelihood, and it can seem improbable in the context of the existing social or political structures. However, once a revolution takes place, it is viewed through the lens of history, leading to a sense of inevitability regarding its occurrence and impact.

This perspective suggests that societal change often feels uncertain until it is realized. The transition from an idea to a historical event transforms how we interpret its significance. Revolutions, once they happen, are no longer questioned; they become part of the historical narrative, accepted and analyzed as necessary turning points. This highlights the complex relationship between human agency and historical forces, illustrating how the course of events can shift perceptions and understanding of history itself.