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  2. 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.

  3. 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 ...

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

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

    Science & Tech. Shopping. Sports. Weather. A Scientist Says Time Travel Is Possible With Ring Lasers. Tim Newcomb. March 2, 2023 at 5:02 PM. ... In Einstein’s theory, space and time relate to ...

  5. 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 ...

  6. Physics of the Impossible - Wikipedia

    en.wikipedia.org/wiki/Physics_of_the_Impossible

    Einstein’s equations do show that time travel is possible. This would not be developed for a time scale of centuries or even millennia from now. This would make it a Class II impossibility. The two major physical hurdles are energy and stability. Traveling through time would require the entire energy of a star or black hole.

  7. Chronology protection conjecture - Wikipedia

    en.wikipedia.org/wiki/Chronology_protection...

    The chronology protection conjecture is a hypothesis first proposed by Stephen Hawking that laws of physics beyond those of standard general relativity prevent time travel—even when the latter theory states that it should be possible (such as in scenarios where faster than light travel is allowed).

  8. Special relativity - Wikipedia

    en.wikipedia.org/wiki/Special_relativity

    In physics, the special theory of relativity, or special relativity for short, is a scientific theory of the relationship between space and time.In Albert Einstein's 1905 paper, On the Electrodynamics of Moving Bodies, the theory is presented as being based on just two postulates: [p 1] [1] [2]

  9. Scientists say time travel is possible - AOL

    www.aol.com/news/2016-11-28-scientists-say-time...

    The scientists are saying there are many parallel universes where every conceivable outcome occurs and these different universes interact with one another.