The quote from the book "Engleby" by Sebastian Faulks highlights the uncertainty surrounding our understanding of reality, particularly in relation to time. It suggests that our perception of events and their authenticity is tied to our ability to traverse time, implying that without this capability, we remain skeptical about the reality of experiences. This reflects a philosophical inquiry into memory, history, and the nature of truth.

By questioning the reality of what has happened, the quote invites readers to consider how our experiences and the passage of time shape our understanding of existence. It underscores the limitations of human perception and the challenges inherent in comprehending past events. Ultimately, it raises profound questions about how we validate our memories and the truths we hold about our experiences.