there is no scientific evidence or consensus regarding the existence of parallel universes. The concept of parallel universes or multiple realities stems from theoretical physics, such as the multiverse theory, but it remains largely speculative and hypothetical.
If parallel universes were to exist, the possibility of accidentally traveling between them would depend on the nature of these universes and the mechanisms through which such travel could occur. Since we lack concrete knowledge about parallel universes, it is impossible to determine with certainty whether accidental travel between them is possible or not.
It's worth noting that discussions of parallel universes often emerge in works of fiction, such as literature and movies, where authors explore imaginative concepts. In those fictional contexts, accidental travel between parallel universes can serve as a plot device or a storytelling element, but they do not reflect current scientific understanding.