"Sidewise in Time" describes it in the manner that similar to requiring both longitude and latitude coordinates in order to mark your location on Earth, so too does time: traveling along latitude is akin to time travel moving through past, present and future, while traveling along longitude is to travel perpendicular to time and to other realities, hence the name of the short story. One of the first science fiction examples is Murray Leinster's " Sidewise in Time", in which portions of alternative universes replace corresponding geographical regions in this universe. Similarly in Persian literature, "The Adventures of Bulukiya", a tale in the One Thousand and One Nights, describes the protagonist Bulukiya learning of alternative worlds/universes that are similar to but still distinct from his own. The concept is also found in ancient Hindu mythology, in texts such as the Puranas, which expressed an infinite number of universes, each with its own gods. The lower reality is similar but with flaws. Plato reflected deeply on the parallel realities, resulting in Platonism, in which the upper reality is perfect while the lower earthly reality is an imperfect shadow of the heavenly. Heaven, Hell, Olympus, and Valhalla are all "alternative universes" different from the familiar material realm.
MARIO MULTIVERSE WIKI SERIES
6.2 Television series involving parallel universesįiction has long borrowed an idea of "another world" from myth, legend and religion.4.4 Fictional universe as alternative universe.2.5 Convergent evolution due to contamination.2.2 Time travel and alternative history.A universe where the very laws of nature are different – for example, one in which there are no Laws of Motion – would in general count as a parallel universe but not an alternative reality and a concept between both fantasy world and Earth. The term "parallel universe" is more general, without implying a relationship, or lack of relationship, with our own universe. While the four terms are generally synonymous and can be used interchangeably in most cases, there is sometimes an additional connotation implied with the term "alternate universe/reality" that implies that the reality is a variant of our own, with some overlap with the similarly-named alternate history. The sum of all potential parallel universes that constitute reality is often called a " multiverse". ( Learn how and when to remove this template message)Ī parallel universe, also known as a parallel dimension, alternate universe, or alternate reality, is a hypothetical self-contained plane of existence, co-existing with one's own. Please consider expanding the lead to provide an accessible overview of all important aspects of the article. This article's lead section may be too short to adequately summarize the key points.