MovieChat Forums > General Discussion > Does Time Have a Beginning or an End?

Does Time Have a Beginning or an End?


Evidence indicates that the SPACE--TIME FABRIC of this UNIVERSE we inhabit came into existence approximately 13 BILLION years ago.

But what about PRIOR to that time???

Did TIME exist before that???

Will TIME still exist after the end of the UNIVERSE???

Some experts also suspect that it will FREEZE or FIZZEL OUT like a FIRE WORK does (due to the way that it's also been COOLING DOWN since it was created and due to the way it also keeps EXPANDING faster and faster all of the time).



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Your first problem is proving that space-time actually exists and isn't just a byproduct of our limited understanding of the universe. Remember, people once thought the world was flat and the sun orbited the earth, evidence strongly suggested this to be true... but that evidence was taken with an incomplete understanding of the universe which is why we laugh at such evidence today. Remember, evidence is not proof, it only supports an argument, it does not prove it true.

If you can unmingle space from time, then naturally time can exist without space.

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Your first problem is proving that space-time actually exists and isn't just a byproduct of our limited understanding

Yes that's what one is suggesting is maybe the FABBRIC of SPACE-TIME is actually some kind of a GRID (like the one you would see in STAR TREK after they end the HOLOGRAPHIC program).

And that may also mean some other kind of an ADVANCED BEING has created us and we'd be located inside of some kind of a SUPER ADVANCED SIMULATION (like THE MATRIX in THE MATRIX).

And that's also the reason why the QUESTION was put forth asking whether SPACE-TIME exist inside of a SIMULATION and if it would contain the same SPACE-TIME that would be located OUTSIDE of it (where the others exist that had CREATED IT).

If you create a SIMS WORLD, for instance, wouldn't it also have a different sense of TIME than you do???

So keeping that in mind, perhaps those ADVANCED BEINGS who created us would also have another completely different concept of TIME???

Anyhow, here's you PROOF that it's suppose to EXIST:

https://science.nasa.gov/science-news/science-at-nasa/2011/04may_epic/

NASA Announces Results of Epic Space-Time Experiment




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A fascinating question, but WAY above my pay grade. The late Stephen Hawking had some interesting thoughts about this,
especially in his fascinating book A Brief History of Time.

😎

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Haven't we been here/done this before or was that another poster???

I've got the book sitting near me, PLUS you can also ACCESS it here at this link:

https://www.fisica.net/relatividade/stephen_hawking_a_brief_history_of_time.pdf

So why don't YOU TELL ME what it says about the UNIVERSE being INFINITE or FINITE and explain WHY it says what else it has to say regarding that matter.

πŸ“ŒπŸ“ŒπŸ“ŒπŸ“ŒπŸ“ŒπŸ“Œ

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If I remember correctly, he posited that the universe was both finite and infinite, since it was curved.

😎

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Here's the link where quotes from the book are posted:

https://moviechat.org/general/General-Discussion/605db22e304720121b46301c/Is-gravity-an-enigma?reply=6061f4d7ed89483310da86b8

And here's some QUOTES from the QUOTE from CHAPTER 8:

the subject of the talk I had just given at the conference – the possibility that
space-time was finite but had no boundary, which means that it had no beginning, no moment of Creation.

there are only two possible ways the universe
can behave: either it has existed for an infinite time, or else it had a beginning at a singularity at some finite time in
the past. In the quantum theory of gravity, on the other hand, a third possibility arises.

Because one is using Euclidean space-times, in which the time direction is on the same footing as directions in space, it is possible for
space-time to be finite in extent and yet to have no singularities that formed a boundary or edge. Space-time would
be like the surface of the earth, only with two more dimensions. The surface of the earth is finite in extent but it
doesn’t have a boundary or edge: if you sail off into the sunset, you don’t fall off the edge or run into a singularity. (I
know, because I have been round the world!)

If Euclidean space-time stretches back to infinite imaginary time, or else starts at a singularity in imaginary time, we
have the same problem as in the classical theory of specifying the initial state of the universe: God may know how
the universe began, but we cannot give any particular reason for thinking it began one way rather than another.


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Okay then. Thanks.

😎

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Follow-up Question: Is the universe finite or infinite, and explain why?

😎

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Here's an interesting link where someone explains and suggest the reason why they think that it's INFINITE:

https://www.quora.com/If-the-universe-came-from-a-multiverse-where-did-the-multiverse-come-from

I believe that our universe is a black hole, inside another universe that is about the same size (in terms of energy/mass) as our universe (it sounds counter intuitive, I know). The difference is that time passes very quickly for us, compared to what happens in the universe "outside". And all the black holes in our universe are new universes, with the same amount of mass and energy as this universe.

In fact, all the energy that is inside each of these sub universes (black holes) consists of particles that ”were once" you, me, the sun and so on. A black hole does not have to wait for us to decay. Anybody that have gone into a black hole will have seen the future heat death of the universe, even though we are sitting here having this conversation. Mass can be both inside a black hole, and here simultaneously due to relativity.

If any particle eventually will end up inside a black hole it already has entered that black hole as seen from within the black hole.


πŸ“ŒπŸ“ŒπŸ“ŒπŸ“ŒπŸ“Œ

This makes our universe ***"INFINITE in TIME,"*** and I find it extremely inspiring.




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So are you a physicist?

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Mass can be both inside a black hole, and here simultaneously due to relativity.


E = mcΒ²


So are you a physicist?


No. I majored in and got my degrees in the ARTS (LIBERAL ARTS and the HUMANITIES with a concentration in LITERATURE) not in the SCIENCES.

But the friend who had his PHD in PARTICLE PHYSICS also has a diploma that says DOCTORATE of PHILOSOPHY and doesn't mention anything about his having a degree in SCIENCE.

Because before you can get a degree you also have to take other courses in both the ARTS and in the SCIENCES so that you'll be a WELL ROUNDED STUDENT by the time that you graduate.

πŸ˜‰

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no

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It's called a singularity. Time is measured by something changing -- ticks of a clock, sand falling through an hourglass, the sun's changing position in the sky, or the neural and biological processes in our bodies and minds. If there is nothing that changes, there is no time and no ability to perceive time.

When we want to measure time for uniform scientific purposes we pick something that from our perceptions changes very fast and uniformly. One such unit is the time it takes light to traverse the radius of a hydrogen atom. Another one is the vibration of electromagnetic radiaation of a given frequency ... i.e. the period of time it take for one wavelength.

If there was no movement in the first instances of the universe, there was time, but it could not be measured and no telling how long it was like that for because it could not be measured. The best we might do is extrapolate backwards, like taking a limit in calculus.

Maybe in the beginning of the universe everything was one giant potential, like a new battery in the package, and at the end there is no means for anything to move because everything is at the same energy level ... like a drained battery. Time cannot mean anything in those limits, only in the middle of the universe.

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Time cannot mean anything in those limits, only in the middle of the universe.


What do you mean when you say the MIDDLE of the UNIVERSE???

Does it have a SHAPE???

If so, then where are we located at inside of this SHAPE???

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Oh, I meant the middle of time as opposed to the beginning of time or the end of time ... as we perceive it. After the Big Bang, or before the last photon emission?

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But how can you know where the MIDDLE of TIME is located when you don't know how long TIME will last???

And since it's also a SPACE-TIME FABRIC, how can you tell where the CENTER place of that FABRIC would be???

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are you trolling or something ... middle does not have to mean the exact midpoint. Get yourself a dictionary. clearly no human intuitive geometric terms can apply to something that is not perceivable to humans, so have a little flexibility in your understanding.

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This question makes my brain melt trying to figure it out 🀯

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Time doesn't exist. There's only now.

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β€œTomorrow, and tomorrow, and tomorrow, Creeps in this petty pace from day to day, To the last syllable of recorded time; And all our yesterdays have lighted fools. The way to dusty death.


Quote by William Shakespeare


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Tomorrow never comes, there's only now.

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OUT, OUT, BRIEF CANDEL !!!

LIFE is but a WALKING SHADOW

A POOR PLAYER that STRUTS and FRETS it's HOUR upon the STAGE

and then is HEARD NO MORE.

IT's a TALE told by AN IDIOT.

SIGNIFYING NOTHING !!!

πŸ•―πŸ•―πŸ•―πŸ•―πŸ•―πŸ•―πŸ•―πŸ•―πŸ•―πŸ•―

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Do you have thoughts of your own or are you just going to quote others?

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My FOUNTAIN THEORY has already been posted here on this topic.

Go check it out and let me know if you like it.

πŸ“Œ

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Depends on the definition of time. Can time exist without matter or even a universe? What was before the Big Bang? Nothing? So, no universe, no time?

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BRANE THEORY suggests that 2 BRANES BANGED together which is what produced the BIG BANG.

So the question would be what's contained inside of those BRANES.

Does TIME or SPACE-TIME also exist inside of them as well???

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[deleted]

NO, didn't know that one can catch a BRANE.

So how do you CATCH ONE???

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[deleted]

in theory, you can actually catch one of those BRANES?

You were asked how one could CATCH ONE of them.

No one said anything about not having one of them.

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