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  2. Parallel universes in fiction - Wikipedia

    en.wikipedia.org/wiki/Parallel_universes_in_fiction

    Time travel can result in multiple universes if a time traveller can change the past. In one interpretation, alternative histories as a result of time travel are not parallel universes: while multiple parallel universes can co-exist simultaneously, only one history or alternative history can exist at any one moment, as alternative history usually involves, in essence, overriding the original ...

  3. Parallels (Star Trek: The Next Generation) - Wikipedia

    en.wikipedia.org/wiki/Parallels_(Star_Trek:_The...

    In 2015, The Hollywood Reporter noted this episode's scene with a frightened Riker from the Borg universe wanting to stay, as one of the top ten "most stunning" moments of Star Trek: The Next Generation. [12] In 2017, it was rated as the 9th best time travel episode in Star Trek. [13]

  4. Time travel - Wikipedia

    en.wikipedia.org/wiki/Time_travel

    Time travel is the hypothetical activity of traveling into the past or future. Time travel is a concept in philosophy and fiction, particularly science fiction. In fiction, time travel is typically achieved through the use of a device known as a time machine. The idea of a time machine was popularized by H. G. Wells's 1895 novel The Time ...

  5. Multiverse - Wikipedia

    en.wikipedia.org/wiki/Multiverse

    A common feature of all four multiverse levels is that the simplest and arguably most elegant theory involves parallel universes by default. To deny the existence of those universes, one needs to complicate the theory by adding experimentally unsupported processes and ad hoc postulates: finite space, wave function collapse and ontological ...

  6. The best time travel K-dramas — and why there are so ... - AOL

    www.aol.com/news/best-time-travel-k-dramas...

    A list of the best time travel K-Dramas and where to watch them, including picks from 2023 and 2024. ... Set in parallel universes, this K-drama was Lee Min-ho’s comeback after completing his ...

  7. Time travel in fiction - Wikipedia

    en.wikipedia.org/wiki/Time_travel_in_fiction

    A time slip is a plot device in fantasy and science fiction in which a person, or group of people, seem to travel through time by unknown means. [12] [13] The idea of a time slip has been used in 19th century fantasy, an early example being Washington Irving's 1819 Rip Van Winkle, where the mechanism of time travel is an extraordinarily long sleep. [14]

  8. Hyperspace - Wikipedia

    en.wikipedia.org/wiki/Hyperspace

    In science fiction, hyperspace (also known as nulspace, subspace, overspace, jumpspace and similar terms) is a concept relating to higher dimensions as well as parallel universes and a faster-than-light (FTL) method of interstellar travel. In its original meaning, the term hyperspace was simply a synonym for higher-dimensional space.

  9. Temporal paradox - Wikipedia

    en.wikipedia.org/wiki/Temporal_paradox

    A bootstrap paradox, also known as an information loop, an information paradox, [6] an ontological paradox, [7] or a "predestination paradox" is a paradox of time travel that occurs when any event, such as an action, information, an object, or a person, ultimately causes itself, as a consequence of either retrocausality or time travel.