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Some people say that some day, all time will rewind itself back until there was "nothing".

Do you think this makes sense at all?
Why or why not?

I haven't heard this one, and no I don't think time would rewind on its self....I think if the world was to start again it would be because humans enialate themselves and all other living things.

i havent heard of this either, but i agree with muli about that the world will one day start again

Ha time flowing back wards, um no.
But there is some truth in the concept of returning to nothing.

As the universe expands and ages stars will die and over time even the atoms themselves will fall apart. In around 10^99 years the last black hole will evaporate and all that will be left are small amounts of scattered energy.

During the last age of the universe some 10^100 years from now there will be things called "quantum bubbles" these bubbles are nothing more than small bits of energy so broken down that they form new types of energy. These bubbles may expand into entire new universes in which the laws of physics are totally rewritten. These bubbles would destroy all matter as we know it.

Before the age of quantum bubbles time would be so slow that it would literally take you billions of years to decide what you would have for lunch, that is of course if life could some how exist.

How does time slowing down affect the speed of one's thinking, xzavier?

Time is a demarcation measured in revolutions of the planet, the speed of light . . . What I'm getting at, and please excuse my rudimentary understanding of space travel, is that the whole idea of putting long distance travelers in a state of suspended animation is so that they would remain unaffected --- in earth time --- by those fluctuations of energy and how it effects time.

There are 2 types of time "Earth time" and "Universal time." Earth time is what we measure in hours and years, universal time is,simply put, what is.

All things actually run according to universal time which only changes with gravity.

The reason why your thinking would be affected is because thought is a process of molecules. During the "dark age" as it is called, only a few black holes would exist and you would have to "live" around them. As we know black holes slow down time. The black holes during the dark age would be something on the order of a billion solar masses, in other words a galaxy.

Lets say that today you and a friend went out to a black hole. You stayed away from the event horizon, nice and safe. Your friend went into the event horizon.

He would spin around the black hole a few times and then be sucked in, he would see you disappear as he becomes "spaghettified" (yes that actually is a real term).
You on the other hand would never see him fall into the black hole, you would just see him stationary. It would take a near eternity for the light of the time to travel out of the event horizon and reach your eyes.

I don't think it's possible......

One possiblity is that the Universe will come to an end in the opposite of a Big Bang called The Big Crunch.

If there is enough matter in the Universe eventually gravitational forces will stop its expansion. When this happens gravity will cause the universe to reverse its direction and begin to collapse under its own weight. This phase of the Universe's life is known as the Big Crunch.

Eventually all of the matter in the Universe will collapse into a super dense state and possibly even collapse into an unimaginably massive black hole. Some theorize that the Universe could collapse into the same state that it began as and then blow up in another Big Bang.

In this way the Universe would last forever but would continually go through these phases of expansion and contraction, Big Bang and Big Crunch and so on...

* * * * *

The other possibility is that we live in an Eternal Universe that will never come to end.

If the universe does not contain enough matter to stop its expansion it will continue to expand forever.

Using the currently understood laws of physics we can project into the future what the Universe may look like in very distant eras. Two astrophysicists at the University of Michigan have outlined the future history of the Universe.

They have divided the future into Eras. The current Era is known as the Stelliferous or Star-Filled era. In this era the Universe is filled with stars and galaxies and planets as it is today. At the end of this era all stars have exhausted their fuel and have died leaving behind only remnants of their once glorious era.

The next era is known as the Degenerate era. In this era the universe is made of dead planets, brown dwarfs, white dwarfs, nuetron stars, black holes, and some theoretical forms of dark matter. At the end of this era all protons, which compose the nuclei of all atoms, disintigrate.

The next Era is the Black Hole era because black holes will be the only gravitaionally important objects left in the universe. However, Black holes do not last forever. They evaporate by a strange radiation process.

After that the Universe shall be composed of only radiation and particles which have an infinite lifetime such as electrons, positrons, and neutrinos. From this point on interesting things might continue to happen but we have reached the limits of our knowledge.

Hate to break it to ya but the "Big Crunch" is all but impossible. The universe is so large that even the largest super-clusters of millions of galaxies aren't gravitationally bound.

The scenario I presented (above posts) is the one which has the most supporting evidence.

We live in an eternal universe up until 10^101 years or so, then via quantum fluctuations/bubbles it will cease to exist all together.

nope, what a ridiculous idea. Time is linear not cyclic

PsiVamp,

The second possibility you presented is whats going to happen however you left off 1 age, the Dark Era/Age. That is the realm of quantum bubbles, protons won't exist and the last electrons will have millions of light years between them.
----------------------
I can not stress how empty and utterly void of all things "matter" the Universe will be. The Universe will be perhaps hundreds of trillions of light years light years in size with a temp. of less than .0001K (thats really cold)

Once the bubbles start there is no telling what will happen...sorta. One of the bubbles will consume the whole universe, this we know. We know it because of quantum theory "anything that can happen will." Once this happens there won't be a universe or time so technically there will be nothing after the universe.

The new "universe" created by the bubble won't be able to be called a universe because it won't be made up of matter as we know it.

We KNOW whats going to happen to our universe and it is a rather bleak assessment. Of course we don't have to worry about it.

The universe will not go on forever, time will stop, there will not be a big crunch, there was never a cycle of big bangs and in the end it will all just go "poofda" and thats it.

An interesting note- We may be the product of such a quantum bubble effect. I have been saying for a decade that the universe was created by something outside it, that the big bang had "help." Recently I ran across several articles basically saying the same thing, I'll find them again if y'all wish.

There may be a cycle of bubbles but because of the difference it would be incorrect to call them universes, as we know it and the term "big bang" is also incorrect because there won't be a concentration of matter to begin with.

Can't wait to see it happen ;)

i believe that anything is possible,if i could hit rewind,id go back a long time ago where i first started drinking and do that all over again :D

LizSara: I had to correct this. Time is NOT linear.

Time is certainly not linear.

History repeats itself, and it can be taken literally as well. It only makes sense that time will repeat itself, which means, in some way, to go back. To rewind.

Well time will still most likely not rewind, but instead slow and finally stop entirely.

That's a new theory! I wonder what would trigger something like that? I don't see how that could possibly ever happen. I've heard of humans depleting all the resources on Earth, the world exploding, the sun burning out and eventually becoming a black whole...... The Earth will renew itself, countries at war may bomb each other and cause catastrophe, nothing that will everyone since the beginning of time come back and relive everything in reverse as far as I can tel.....

Does anything just stop? Makes little sense, too.

Energy will always be there, no matter what. That in itself makes the theory of "time stopping entirely", impossible.

No I do not, I believe that the earth will replenish itself and fix all the wrong that we have done. I do not believe that time will just rewind back and keep doing that no. Why would it do that then the same people would be born the same time and we would be trapped in an endless circle.

I just heard people say this somewhere. The world doesn't revolve around the internet.

characteristics of time do repeat themselves; nothing ever stops completely;no the world doesnt revolve around the internet.

I'd like to see the articles, Xzavier.

Savageant, by rewind are you referring to how light travels so that when it reaches us we are actually viewing an event from the distant past? There's a crossing point in there somewhere to the future, as if time loops and meets itself again.

No, I mean it literally.

Time stops, then starts to rewind back when everything was nothing. Just space and energy, then we repeat everything again.

That sort of kills the reasoning for "God", though.

yeah, and it doesn't seem purposeful enuf. I hate to backtrack.

I can see Xzaviers theory but I just don't see time rewinding back on itself....you said literally rewind back to nothing then repeat again, like how fast would it rewind? Would we know that time was rewinding itself? Would we be all running around backwards? Unless I'm missing something in the interpretation, it just doesn't seem feasible!

I've never heard of time "rewinding".

However, I dont think it would be unreasonable to believe that the world will go back to how it started - with nothing.

I can understand what Xzavier & PsiVamp are both saying. but even with the reasoning I don't think time wouldn't rewind itself, maybe stop altogether but not rewind.

This is the only one I could find at the moment.
http://news.bbc.co.uk/2/hi/science/nature/7440217.stm

Time is very much linear the concept of "history repeating itself" isn't a literal interpritation.

God exists outside our universe so just beacause this one goes away doesn't mean "he" does.

Saying time is linear is saying there is an end. It's saying that one day, one time, there will be nothing, and never again will there be anything. That doesn't make sense to me, as I see the universe as constantly repeating what it has done in a never-ending cycle.

Time as we know it is a product of our universe. Just because something happens after or before the universe doesn't mean that it was a measurement of time.

I know it's a bit tricky to wrap your head around, I still have issues with it lol. But trust me, time in our universe is linear.

There are condintions under which time does some pretty interesting things but over all it's pretty much a straight line.
According to our understanding of the term "universe" time began and ends with it.

This is a totally new topic to me as well


however i do not think it will start all over, we have come to far and have far too much that would have to be "replayed"

Hmm I have never heard of this before. I just think that as things are changing it will go thru the cycles as it is now, beginning with the climate changes.

no because time is a measurement.

i think that everything is expanding and even with enough momentum could all be pulled back in by a great black hole only to be spat out as something not completely different and then go on to start the expanding process again.

Hottubmolly- Real time is not a measurement, measurement is a unit of time. Nothing can exist, move, breathe etc without time.

i believe the world will start over but not by rewinding

this quote is from the link xzavier posted above:

Meanwhile, Professor Carroll urged cosmologists to broaden their horizons: "We're trained to say there was no time before the Big Bang, when we should say that we don't know whether there was anything - or if there was, what it was."

The article also mentions the second law of thermodynamics, where the universe, time and events proceed from order to disorder, but the assumption is "that the universe began with order."

Why do I feel like I'm reading Vonnegut?

I think they might have gotten mixed up with the definition of a black hole.

I'm not sure about time rewinding....

But I am sure about "entropy" and how everything will come to an eventual end.

I haven't heard of this one either but I think persoanlly that once we are all gone their will be a whole new breed right behind us learning things everyday of their lives and when they die, it happems again. It is a cycle from one generation to another.

In a way it does, for in the end everything with have to be rewind " " and put back in place, back to the start of things.

I don't think that it will necessarily rewind literally, but I can see that it may go to nothingness again. We are headed down a road of total annihilation. Once we destroy everything here, no one will know what happens next so to speak. Will we all be sitting on a cloud somewhere in "Heaven" watching?? Personally, I think that would be cool.

maybe time as we know it is a loop and loops back on itself as we know space and light can be bent....that implies that time is not eternal though and has a set measurement...or maybe im one to many beers into it to have this conversation lol

For time to rewind naturally it would take some serious forces at work, massive gravities, energies and manipulations of multi-dimensional manifolds.

However, it may be possible in a sense. After the universe dies and over countless years (seriously yo we're talking big numbers) due to probability and quantum theory a totally new universe, just like our may very well come into being.

And should human evolution advance to the point where we can alter dimensions and exist in a higher dimension than the 3rd ( lets say around the 4th-11th) then we ourselves could gather all the energy throughout the universe at it's end and cause a new big bang. Of course the time issue may still pose a problem e.g is it a continuation of the old time or a new set of time.

I have never heard of time rewinding and dont think it is possible. This worls as we know it in the near future will no longer exist, most likely by something along the lines of another ice age

well I do not believe that Time actually can rewind.. I do feel that the world and universe does EVOLVES yet not rewind .. because time Linear as Xzavier said ..

I do not believe in a "rewind'. There are too many forces that indicate once you have mass, you maintain that mass in some form- black holes for instance.

However that said, I think we progress in a spiral that could be tightly woven enough that would make it seem that it is a "rewind". Even considering the idea of the swing of a pendulum. Everything we do creates more motion and energy, at some point that energy will be exhausted (not depleted) and until it is invigorated again there could be a time of "pause" while our mass shifts.

It is similar for me to the concept of Chaos where something comes from nothing, however I would argue it's not nothing, just mass and energy that has lost its form or ability to be recognized.

Wow Sahahria you put that so well into words and it makes alot of sense to me .. I mean I had not thought of it in that sense yet it does seem exact. Thank you

Time can't rewind.. What's done is done and there's no going back. Now, if someone were to tell me that the world would eventually destroy itself and start over from nothing in time.. then that might make a bit more sense.

No. Life is always going forward...never go back to a time before.

In the same light, I wonder what your opinions would be on the matter if, lets say, you were around a black hole or some other phenomenon.

In a metaphorical sense I guess it's possible - evolution would have to stop somewhere and I suppose it's only natural that we as a species may start to revert back. Think of all those sci-fi films where the future is portrayed as a wasteland where humans dwell in caves and live off the land - simply doing what our distant ancestors did. It's a possibility I reckon. But I don't buy into actual TIME rewinding, just our perception of it.

I actually haven't heard that yet but I don't think that will happen. I think time will continue on until long after we are gone and the next spieces have taken over.

Another thing that the "nay sayers" are not taking into account is that time slows down as we approach the speed of light. Hence why far space travel, even if we were able to do it, would remove the astronauts potentially hundreds of years from their time.

And while most people view time as a line, personally I think it's a dot. One that is infinitely small and large at the same time. It is our perception of this "dot" that determine where we are: past, present, future.

This is important in any type of time discussion because while we understand the workings of time as a measurement and time in our universe, we do not understand some of the quirks that occur. There may infact be other aspects that could arguably make time go in reverse if we can slow it down. Thus a "rewind" could occur. However I still maintain that it would not be to nothing.

Sahahria-
You are correct when you mention time as a dot, at least in a way.
Past, present and future all do exist at the same moment and if "zoom" in enough you'll see time in a small bundle.

As for slowing it down, thats rather easy it's the rewind part that doesn't work.
And while it may be an interesting concept to travel near or at the speed of light we must remember that as a mass is accelerated it requires more energy to move it. A photon is massless, and electron is near massless and can reach 99.99%+ but the human body is far from massless and would require the energy of entire galaxies and more.

At least that is where our knowlege takes us currently. However looking at physics and some of the new theories out there, there is a possiblity that once we change our perception we might solve this "problem" of mass.

Then again we might not. Until we do, no we can't rewind. Still there is a possibility theoretically that in the future we could.

Your right I just wasn't sure if I should go into it. But there is a hypothetical particles called a "Tachyon" which travels at superluminal speed and has an imaginary mass. By surrounding a spacecraft with them you would disjoint the craft from normal space-time and enable it to travel faster than the speed of light.

Seems unlikely to me. But maybe if they mean that one day all life will be exterminated somehow and there will be nothing left, that's a possibility.

That seems to be highly unlikely. Yeah I am sure that some day things may go into full circle. But who really knows.

i dont believe so..but that doesnt mean it wont happen or could happen...nobody will know until the time comes for it...

Well, I don't think time will rewind itself, that is impossible, but I do think that something could happen to wipe everything out and technology and evolution would have to start over, such as a meteor crashing to earth and killing everything, or like the Ice Age that killed all the dinosaurs, etc. - providing there were survivors of some sort. Otherwise I believe the planet would be dead.

I haven't ever heard this theory, but I would think that it doesn't make sense. How can time go backwards? I just don't see how it's possible.

I don't think time will ever rewind. I think that evenutally everything will sese to exist but time will always be there going on and on cause there will always be something out there..

So I have read a lot of points of view here. Still trying to decipher them all. Metaphorically yes, we can "kill" earth and ourselves and in a such turn everything backwards. Realistically, as a hypothesis, If It is linear, can we not fold it and make time come together, showing a past and present. Making it appear as though time is turning backwards?

It doesn't make sense at all to me. It's like saying that some day the universe will reach it's limits and contract into nothing. Illogical.

If it did, it would have to take some time. It wouldn't just "go back" just like that.

It would have to take several years.

-Juggalette givin MMFWCL

It is not the most realistic theory I've ever heard,
but if you do believe everything is a circle,
it is possible sometime the end to meet the start..

no i do not think that will ever happen,obviously not because that would be useless to start over especialy since all that mankind and history has acomplished.

CountT -


I doubt that time truly cares what mankind has accomplished. Therefore I think that is a somewhat obsolete theory.

I do think the world will rewind.. Do not know why but i think it may occur.

I do not agree with a few of the things that have been said here. X, I don't understand how you can tell people that they are right or wrong when everything you have said hasn't even been proven. This is all theoretical.

I think that time has more of a tendency to be linear. Simply perceived cyclic in some instances.

Lines overlap on themselves all the time, that doesn't erase them. I think that the behavior of time is all up to everything in the universe. Time can have locales too; with that, I'd say time has rewound itself back to a point where the locale's mass was nonexistent, and will probably fast-forward, pause, stop, rewind again, eject, AND show subtitles. It might even skip a scene or two.

I don't believe that time can rewind but I do believe that some force of nature could wipe everything out to cleanse the earth and start anew...much like the ice age did and the extinction of dinosaurs.

How would everything just rewind though? I don't think that it is possible we would just be living the same life all over again.

Isn't time an infinite thing? There is no beginning and no end to it..it is ever existing?

My theory is, is when we die, we end up looking back on our lives to see what we have done.

I guess that could be like putting life in rewind.

Even if this world we know now ceases to exist time will not rewind. What would happen is another civilazation will take our place

im just throwing this out for thought but if time was circler that could explain all the de' javue exp.

I find it difficult to believe it's probability, I always thought that everything developes during time, so maybe something happens and return to nothing? Hmmm.. interesting concept but in the literal meaning, no it doesn't convince me much.

on a microscopic level our cells and the atoms that make up those cells are not even the same cells that made up our bodies at the time of the memory. we are literally different people as the one we remember (like i said on cellular and atomic level)

maybe i didnt understand the question. rewind as in billions of years ago?

hmm doubt it. everything might reach its expanding capacity, have a moments pause and begin its billions of years contraction.

I think that this is an extreme possibility. I do not think that "rewind" is the right word though. More like that we, in the future, destroy ourselves, loose intelligence and become the beings we once were. And that we have to start over. Like in the time Machine. I know weird example, but I think the world and the people in it will start over, be given yet another chance.

its possible that everything is happening at once and since we are conscious of the concept of time that is how we prefer to see things. we do look at time as linear, going forward, but if one day we all see it another way then it very well could go another way. but its fun to think about, i mean have you seen the episode of red dwarf where they visit a planet that goes backwards? its sooo funny. you regurgitate your drink and then your $5 richer! haha now thats comedy. i doubt that we will see it any other way than forward like i said its fun to think about it going another way.

I dont believe it makes since at all. as i really dont think that rewinding will take away all our knowledge we have learned on earth but i also believe that when we die we go somewhere else also.

DeadlyDesire -


Time is considered infinite, much like the expansion of space.

Time can only go forward never backwards life is not a vcr or a dvd player. Time will always go forward and once it has pass it is pass..

mayan calander
https://www.youtube.com/watch?v=uZIfyXc8RWk

Hmm interesting concept. No personally I don't believe that one day the world will rewind back to nothing. It just doesn't seem right or even sound right.As someone stated earlier the world isn't a vcr or dvd player. I believe someday the world will start over again, but it won't be from back to the begining or rewond. I believe it will keep going an eventually have it's own new begining. make sense I hope.

Most people that have already posted say " i believe" which concludes.....it's all theory. There have been doomsayers for the LONGEST time, and if one calendar is wrong, they go to the next , which is what the Mayan doomsday 2012 theory? So if that fails, I'm not sure what's next but until then, i'll just keep living and not worry about the next theory someone comes up with for what may or may not occur.

I've heard of this theory from Stephen Hawkings. It's where the big bang finally collapses in upon itself. As the so called big bang pushed matter outward, over time it is slowly beginning to slow down. Given enough time this progression will eventually stop and eventually universal-gravity will cause everything to start moving back to one point... which I like to believe will create another 'big bang' and the cycle will begin anew.

That is the theory I've been told and the way I understood it. What I don't believe, is that everything will run in reverse. Time will still flow forward, every life-form will still live out its life, just that eventually life will become impossible give the density of the universe as we know it at that time.

Jens-

Thats called the Big Crunch and has been proven to be impossible many times :) sorry.

It's not too hard to believe it's been disproven. For something like the Big [Great, Cosmic] Crunch to happen, the expansion of the universe would have to slow down. However, it seems that the expansion of the universe has gotten much faster.

I dont think we can rewind we have learned to much and have to much knowledge to go backwards.

I have never heard of that belief, nor do I believe it. I just think that the universe will implode on us all, that's how there's going to be nothing again haha.

I haven't heard of this idea. I have heard that at some point time will cease to exist. For that to happen it would mean that this plane we live on will cease to exist, hence no planet earth, no sun, no life.

Time is only a concept here for us because our planet orbits around the sun creating day and night.

On the ether or astral time does not exist. When our souls are freed from the bodies we use to learn about life with, there is no time, we have no concept of it until we are born and exist on this plane.

So for it to rewind and go back to the beginning, that would have to mean the universe goes in a complete reversal and creates itself from the beginning again.

Time is inalterable and in constant progress, it can not goe back and will never, as if it was to do so the universal law of nature, physics, life itself would be void and result in human extinction.

I don't believe that time could be rewound like a clock. It is improbably simply because once the past has gone it ceases to exist. So there for there is nothing to rewind in my humble opinion.

I want to fast foward. Right straight to the part where we find out if the end War is gonna happen.

HellHathWings -


Say you were able to fast forward time, how would you know when to stop? Or what if you went to far and ended up in a future war time?

Never heard that one. Remember, though, some people say Santa Claus really does exist. Other people believe Cleveland does not exist. Believe what ya want.

But why rewind. Just wait & we'll mess up all living things. Will be just like the begining,fresh & new.

Rewind? I've never heard of this particular...theory. You mean to say that all of our lives--and those of people that lived before us--will rewind and then be as if we never existed? So, basically, those that believe this theory are saying that anything and everything that we've done or will do is pointless. That seems a tad negative to me. Whoever came up with this was obviously looking for a way to not worry about the consequences of their actions. lol

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