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originally posted by: DeadCat
a reply to: amsterdamn87
I had a little theory my self.
This theory being that intelligent being in the future have time travel, but use it very carefully, they know better than to dabble. These beings are near the end of time in the most literal sense. They use time travel to go back, help further humanity in the time they go back to, so that in the future, they will have progressed more quickly, and therefore be more intelligent. Everytime they near the end, they go back and further their progress. Until they can figure out how to prevent the end, they are postponing it.
These beings are what we call ancient aliens. This is how they gave knowladge to ancient civilians. In modern times, I assume they pass the information in a non physical way, sense we are now capable of comprehending the non physical world.
Anyone traveling "back" in time can only go back to the exact time that time travel was invented.Not any further back. So , we are safe until then...
originally posted by: amsterdamn87
a reply to: Gothmog
Not if the device is the size of a watch and could travel with you.
originally posted by: DeadCat
a reply to: Gothmog
Unless you know something we dont, that can't be said for certain. Maybe time travel is not an invention, but an skill to be perfected.
Maybe they can go back, but not return to the period they came. Because the period they went to, time travel is not possible.
originally posted by: MystikMushroom
How about you can navigate through the multiverse by jumping to another "dimension" or version/copy of reality that is slightly different than this one, yet has what you want?
originally posted by: amsterdamn87
a reply to: DeadCat
I believe with string theory, its possible to be two places at once. I really don't know how string theory actually works.