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Since relativity is our most profound theory of time, we would like to argue that time travel is forbidden by relativity. Einstein had thought that his description of space-time would forbid time travel. But this is simply wrong. Not only is time travel not ruled out but we can actually design time machines.

Author: Peter Watson
Emeritus professor, Physics, Carleton University

WATCH MORE: Time Travel: The Grandfather Paradox
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Produced, directed, and edited by:
Ardit Bicaj

Narrated by:
Russell Archey
https://www.ravonmedia.com/

Graphics:
1ucasvb
NASA
Goddard Space Flight Center
Advanced Visualization Laboratory at
the National Center for Supercomputing Applications
Panama Pacific Line, Prelinger Archives

Stock footage:
envato.com

Music:
envato.com

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7Comments

Add yours
  1. 1
    @aaronengle9344

    No matter how far you travel into the future,or how far you travel into the past,wherever you are at that moment will always be the present. 🤘

  2. 2
    @haroldnowak2042

    Not very satisfactory. The refrigerator reference is illogical. It does not describe what time travel is. Going back to the past while going forward in time is not sufficient. When you go forward in time, the past revisited is not the past you lived but the past shaped by you going forward in time. You cause your past to be your future which becomes unrecognizable.

  3. 3
    @georgeb5157

    What about the flash point that’s supposed to occure when going back in time, that creates the butterfly effect? Around the year 2000 give or take, there was a flash seen around the world no matter where you were, but unfortunately not everyone had seen it. Then coincidentally, most of the prophecies that were made by Nostradamus, Edgar Casey and all of the other non-religious prophets never came true. Are we now living in an alternate time line?

  4. 4
    @kaotikkaliediscope3619

    There are so many holes in this theory that I wouldn’t even know where to begin. Sorry, but that’s the truth of it

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