The concept of creating multiple timelines or parallel universes as a result of time travel is often explored in science fiction, but there is currently no scientific evidence to support the existence of such phenomena or the ability to create multiple timelines through time travel.
In scientific theories, such as the Novikov self-consistency principle or the Many-Worlds interpretation of quantum mechanics, there are attempts to address the possibility of multiple timelines. However, these theories are largely speculative and have not been proven or widely accepted within the scientific community.
The notion of creating parallel timelines through time travel is often used as a narrative device in works of fiction to explore the consequences of altering the past or making different choices. These fictional portrayals typically involve assumptions or fictional mechanisms that allow for the branching of timelines.
It's important to distinguish between scientific theories and concepts that are based on current understanding and have empirical evidence, and speculative ideas or fictional constructs that exist purely within the realm of imagination. As of now, the existence of multiple timelines resulting from time travel remains speculative and unproven within the scientific framework.