What is the earliest appearance of parallel universes in fiction?
What are some of the earliest examples of parallel universes in fiction?
What are parallel universes? Is Parallel Universe just a myth? What is called parallel universe? Do parallel universes exist? What is the theory behind the concept of parallel universe? Are parallel universes real? What is parallel universe? Is there a parallel universe? Is the impossible possible in parallel universes? Does the parallel universe exist? Do you believe in parallel universes? What is a parallel universe and how does it work? Can a parallel universe exist in which there are no parallel universes? Are there any more universes? Do parallel universes exist? Is there positive scientific proof for parallel universes? How do you feel about parallel universes? If parallel universes exist, would there be a universe where parallel universes don't exist? If parallel universes existed, wouldn't there be a parallel universe where parallel universes don't exist? What is the concept of infinite parallel universe? Who are you in a parallel universe? Does the whole idea of an infinite number of parallel universes existing simultaneously have any practical applications? Does the whole idea of an infinite number of parallel universes existing simultaneously have any practical application? If not, why did it gain so much prominence in the recent past? What is the difference between parallel universes and dimensions? Theoretically, how can I travel to a parallel universe? Are dimensions related to parallel universes or multiverses? Is Quora a parallel universe? If parallel universes exist, why is ours so ordinary? Is it theoretically possible to travel through parallel universe? In what ways could quantum computers access parallel realities in the future? Since quantum computers are products of quantum entanglement could they ultimately reveal a parallel universe?