chronon said:
Some common themes include the consequences of altering the past, the concept of parallel universes, and the ethical implications of time travel.
Many sci-fi authors draw inspiration from real-world theories such as relativity and quantum mechanics to create plausible explanations for time travel in their stories. However, the exact mechanics of time travel in these novels often deviate from current scientific understanding.
Yes, many sci-fi novels establish rules or limitations to time travel, such as the inability to change major historical events or the concept of a fixed timeline that cannot be altered.
Characters in these novels often struggle with the moral and ethical implications of altering the past and the potential consequences it may have on the future. Some characters may also struggle with the concept of their own existence in a changed timeline.
Some philosophical questions that arise in these novels include the nature of reality and free will, the concept of fate and predestination, and the idea of the self and identity in a world where the past can be changed.