What is the significance of the multiple timeline theory in understanding the complexities of time travel in science fiction narratives?

The multiple timeline theory is significant in Science Fiction because it allows for exploration of different possibilities and outcomes in time travel narratives. By introducing multiple timelines, authors can create complex and engaging storylines that challenge traditional notions of cause and effect. This theory adds depth and intrigue to time travel plots, offering a fresh perspective on the consequences of altering the past and shaping the future.