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Science & Technology

Time may runs backwards in a mirror universe

By T.K. Randall
December 12, 2014 · Comment icon 63 comments

A diagram representing the passage of time following the Big Bang. Image Credit: NASA
Scientists have proposed that there is a universe parallel to our own in which time runs in reverse.
There is still much to understand about the concept of time, the every present chronological continuum which drives ourselves and the rest of the universe eternally forwards.

Now however scientists conducting a new experiment designed to better understand how the cosmos came in to being have proposed that when our own universe was created, so too was a corresponding mirror universe in which time runs backwards.

The idea was born from the concept that all the fundamental laws of physics work just as well if time is in reverse as they do forwards and that this is exactly what is happening in this mirror universe.
While it would effectively be the same universe as our own, events there would likely happen differently and would not simply be the mirror image of what is happening here.

An observer in one universe however would see events in the other going backwards.

"Time is a mystery," said Dr Julian Barbour. "Basically, all the known laws of physics look exactly the same whichever way time runs, and in the world in which we live in everything goes in one direction."

Whether we would ever be able to visit this mirror universe however remains to be seen.

Source: Independent | Comments (63)




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Recent comments on this story
Comment icon #54 Posted by danielost 10 years ago
No. Not at all. Have you read my posts yet or are you formulating an opinion on title only and running with it. Time is moving forward away from the initial event for both universes. then you would have two universes moving forward through time. they would be mirror images of each other. as in the star trek episode of the same name. the two universes would have the same characters. but they would live different lives. this is in the theory of multiple universes. where every time you make a choice you choice them all. but the theory you have in the op where one group is living from young to old... [More]
Comment icon #55 Posted by karmakazi 10 years ago
then you would have two universes moving forward through time. they would be mirror images of each other. as in the star trek episode of the same name. the two universes would have the same characters. but they would live different lives. this is in the theory of multiple universes. where every time you make a choice you choice them all. but the theory you have in the op where one group is living from young to old and the other living old to young, means that said universe would be moving backwards to the big crunch. The "other" universe would not be regressing in their own timeline. They woul... [More]
Comment icon #56 Posted by Aus Der Box Skeptisch 10 years ago
The "other" universe would not be regressing in their own timeline. They would only be moving in the opposite direction -in time- from us. To them, time would be moving forward. They would live from young to old just as we do. The older both universes became (collectively) the farther apart - in time - they would be. Like this: Nothing makes for a better visual than an actual visual! Im not sure we would even exist in the other universe. I think the timeline would be subject to all the randomness we have in our universe. All the same physics though also.
Comment icon #57 Posted by CocoOutsideCremeFilled 10 years ago
Nothing makes for a better visual than an actual visual! Im not sure we would even exist in the other universe. I think the timeline would be subject to all the randomness we have in our universe. All the same physics though also. If the mirror universe truly began at exactly the same time as ours and developed from identical elements, then I propose that it has no option other than to still be an identical mirror image of our own. Elements don't have random responses; so everything that happened to form space and time as we know it would have had to have happened there just as it did. Right n... [More]
Comment icon #58 Posted by TheDarkerSide 10 years ago
But what if we are the ones living backwards? That sure explains a lot about my life!
Comment icon #59 Posted by CocoOutsideCremeFilled 10 years ago
If the mirror universe truly began at exactly the same time as ours and developed from identical elements, then I propose that it has no option other than to still be an identical mirror image of our own. Elements don't have random responses; so everything that happened to form space and time as we know it would have had to have happened there just as it did. Right now I am in the mirror universe typing this exact message thinking about how the only difference between the universes is my sun travels west to east... After further elaboration I continue to think it is definitely possible that th... [More]
Comment icon #60 Posted by danielost 10 years ago
The "other" universe would not be regressing in their own timeline. They would only be moving in the opposite direction -in time- from us. To them, time would be moving forward. They would live from young to old just as we do. The older both universes became (collectively) the farther apart - in time - they would be. Like this: as i said in the star trek episode of mirror mirror.
Comment icon #61 Posted by Aus Der Box Skeptisch 10 years ago
After further elaboration I continue to think it is definitely possible that there could be a numerous amount of identical me's in other dimensions and parallel universes. It's just a theory, but I don't think it's completely absurd or preposterous to assume that the exact same atoms and molecules under the exact same forces would produce the exact same results every time. I feel this theory could be applied to every variable in the equation from the big bang itself to its derivative which amounted to becoming the celestial bodies to the organisms that rose out of the primordial ooze to the wo... [More]
Comment icon #62 Posted by CocoOutsideCremeFilled 10 years ago
This is where i have a slight problem. Add in entanglement and some quantum matter would act on a wave function while the same quantum matter in its mirror univers might act as a particle. Which would add randomness into the equation. Could it be the same? Maybe. Is it likely to be different? I think so. Maybe our planet if it exists does not have its moon. Maybe this planet never had the extinction. Maybe the primordial ooze didnt spawn life. Maybe this particular star never formed and poof no habitable planet called earth. Every variable to our universe could have a different outcome. Or eve... [More]
Comment icon #63 Posted by sepulchrave 10 years ago
This is where i have a slight problem. Add in entanglement and some quantum matter would act on a wave function while the same quantum matter in its mirror univers might act as a particle. Which would add randomness into the equation. Technically, wavefunction collapse can happen without any entanglement. It is not entanglement that results in the probabilistic outcomes in quantum mechanics, it is the uncertainty principle (or, more specifically, the non-zero commutators between conjugate operators). Regardless of that, quantum mechanics doesn't rule out determinism, it only rules out local hi... [More]


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