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  2. Time travel - Wikipedia

    en.wikipedia.org/wiki/Time_travel

    It is uncertain whether time travel to the past would be physically possible. Such travel, if at all feasible, may give rise to questions of causality. Forward time travel, outside the usual sense of the perception of time, is an extensively observed phenomenon and is well understood within the framework of special relativity and general ...

  3. Time-traveler UFO hypothesis - Wikipedia

    en.wikipedia.org/wiki/Time-traveler_UFO_hypothesis

    Although traveling back in time is almost-universally considered physically impossible, theoretical research has explored whether it might be possible. [8] It has also been speculated by scientists such as J. Richard Gott, Ronald Mallet [9] and others [10] [11] that humans may someday be able to time travel to the past. [12]

  4. A Scientist Proved Paradox-Free Time Travel Is Possible - AOL

    www.aol.com/lifestyle/scientist-proved-paradox...

    Time travel is deterministic and locally free, a paper says—resolving an age-old paradox.. This follows research observing that the present is not changed by a time-traveling qubit.. It’s ...

  5. 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.

  6. A Scientist Says Time Travel Is Possible With Ring Lasers - AOL

    www.aol.com/scientist-says-time-travel-possible...

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  7. Quantum mechanics of time travel - Wikipedia

    en.wikipedia.org/wiki/Quantum_mechanics_of_time...

    The theoretical study of time travel generally follows the laws of general relativity. Quantum mechanics requires physicists to solve equations describing how probabilities behave along closed timelike curves (CTCs), which are theoretical loops in spacetime that might make it possible to travel through time. [1] [2] [3] [4]

  8. The 35 Best Books About Time Travel - AOL

    www.aol.com/lifestyle/35-best-books-time-travel...

    A must-read for any fans of time travel fiction, The Time Traveler's Almanac is "the largest and most definitive collection of time travel stories ever assembled." In it, editors Ann and Jeff ...

  9. Hawking's time traveller party - Wikipedia

    en.wikipedia.org/wiki/Hawking's_time_traveller_party

    Invitations say that the reader is "cordially invited to a reception for Time Travellers" and that no RSVP is required. [3] Hawking waited in the room for a few hours before leaving, and no visitors arrived. [4] He regarded the event as "experimental evidence that time travel is not possible". [5] [6]