Do you think the universe is infinite?

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ferrari2001

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#51 ferrari2001
Member since 2008 • 17772 Posts
Seems impractical that a universe with physical limitations would have no spatial limitations.Genetic_Code
My thoughts exactly. I can't imagine that the universe is simply infinite. I believe that there must be an "end" somewhere out there. What happens when you reach that point is unknown to me.
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FearMe801

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#52 FearMe801
Member since 2011 • 399 Posts

if the space is not infinite, what is outside the universe?

what if we got out of universe and found out that there are a universe next to our universe and what is the gap in between?

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Frame_Dragger

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#53 Frame_Dragger
Member since 2009 • 9581 Posts
[QUOTE="Genetic_Code"]Seems impractical that a universe with physical limitations would have no spatial limitations.ferrari2001
My thoughts exactly. I can't imagine that the universe is simply infinite. I believe that there must be an "end" somewhere out there. What happens when you reach that point is unknown to me.

You can't reach the "end" of the universe, anymore than you can say you're at a specific point in it. See: homogenous and isotropic.
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BossPerson

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#54 BossPerson
Member since 2011 • 9177 Posts

maybe it loops back in on itself, like if you were travelling at the same velocity for (lets say millions of years) you would end up where you started? Also, what would the end of the univers even look like?

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Blue-Sky

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#55 Blue-Sky
Member since 2005 • 10381 Posts

It's hard to imagine it not being infinite. If you get to the end, what's beyond that?

Jackc8

Well the universe is expanding at an accelerated rate, into "something" so it's only natural to wonder if there is something larger than universes out there that could possibly house several universes. After all, that incredibly dense object that initiated the Big bang had to have come from somewhere. . .

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eleven1181

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#56 eleven1181
Member since 2010 • 339 Posts

What if it slike just a big version of earth, just like a globe and you can keep traveling in one direction for ever, just like you could travel the earth for ever if you think about it theres no end to earth unless you go up the way.

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Wasdie

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#57 Wasdie  Moderator
Member since 2003 • 53622 Posts

No. There is a finite amount of particles in this universe.

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-TheSecondSign-

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#58 -TheSecondSign-
Member since 2007 • 9303 Posts

Isn't it expanding or something?

Like, faster than we could ever reach the end?

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-TheSecondSign-

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#59 -TheSecondSign-
Member since 2007 • 9303 Posts

It's hard to imagine it not being infinite. If you get to the end, what's beyond that?

Jackc8

Azathoth.

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MissLibrarian

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#60 MissLibrarian
Member since 2008 • 9589 Posts

Yes.

I don't find infinity a hard thing to think about.

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yomanjdf

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#61 yomanjdf
Member since 2003 • 1166 Posts
multi dimentions infinite
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Alacoque72

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#62 Alacoque72
Member since 2008 • 1238 Posts

I have a feeling reality is infinite

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DeX2010

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#63 DeX2010
Member since 2010 • 3989 Posts
If theoretical physics is too be fully believed, its up for debate in my mind. Yes you could say its infinite, but there has to be a time when the power of gravity exceeds the energy left over after the big bang, and that will cause 'The Big Crunch', where basically the universe is rapidly pushed together again in the state it was pre-big bang.
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194197844077667059316682358889

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#64 194197844077667059316682358889
Member since 2003 • 49173 Posts
Since the universe is known to be expanding, it would be pretty odd for it to be infinite. However, I do believe that it is probably unbounded
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Shadow4020

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#65 Shadow4020
Member since 2007 • 2097 Posts

I think that it's always expanding, so it's infinite.

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194197844077667059316682358889

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#66 194197844077667059316682358889
Member since 2003 • 49173 Posts

I think that it's always expanding, so it's infinite.

Shadow4020
So you think that somethng infinite is... becoming more infinite? Modulo orders of infinity, not really sure how you may have come to this conclusion.
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StRaItJaCkEt36

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#67 StRaItJaCkEt36
Member since 2011 • 551 Posts
the universe is finite
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deactivated-57e5de5e137a4

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#68 deactivated-57e5de5e137a4
Member since 2004 • 12929 Posts
No because that's not something that I can explain.
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Shadow4020

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#69 Shadow4020
Member since 2007 • 2097 Posts

[QUOTE="Shadow4020"]

I think that it's always expanding, so it's infinite.

xaos

So you think that somethng infinite is... becoming more infinite? Modulo orders of infinity, not really sure how you may have come to this conclusion.

No, I think it's infinite, because it is always expanding; effectively making it infinite.

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wolverine4262

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#70 wolverine4262
Member since 2004 • 20832 Posts

[QUOTE="Jackc8"]

It's hard to imagine it not being infinite. If you get to the end, what's beyond that?

Blue-Sky

Well the universe is expanding at an accelerated rate, into "something" so it's only natural to wonder if there is something larger than universes out there that could possibly house several universes. After all, that incredibly dense object that initiated the Big bang had to have come from somewhere. . .

According to Hawking it did come from nowhere. He has been wrong before though. I think the universe is definitely finite. If it is rapidly expanding in size, then logically it has a measurable size. An infinite space wouldnt require any concept of expansion. At least, that makes sense in my head.
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Frame_Dragger

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#71 Frame_Dragger
Member since 2009 • 9581 Posts

maybe it loops back in on itself, like if you were travelling at the same velocity for (lets say millions of years) you would end up where you started? Also, what would the end of the univers even look like?

BossPerson
There is no end of the universe, or rather, no EDGE. See Xaos' comment about it being finite, but unbounded.
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MannyDelgado

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#72 MannyDelgado
Member since 2011 • 1187 Posts
finite, but unbounded.Frame_Dragger
isn't that predicated on the universe not being flat that is not a rhetorical question i genuinely don't know
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ZumaJones07

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#73 ZumaJones07
Member since 2005 • 16457 Posts
If there are multiple universes, would we be able to detect something like an overlap of them colliding? Like two bubbles put together. If there are many universes and they all act like ours and are also expanding, eventually they would all intersect right?
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Frame_Dragger

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#74 Frame_Dragger
Member since 2009 • 9581 Posts
[QUOTE="Frame_Dragger"]finite, but unbounded.MannyDelgado
isn't that predicated on the universe not being flat that is not a rhetorical question i genuinely don't know

Not necessarily.... I think you're confusing boundary conditions with the question of, "open" or "closed".

There are also blends of that, but in any case unless the universe is (relatively speaking) very curved we'll still observe it to be flat. In any case, you can have a flat, bounded universe, or almost any other imaginable configuration.
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Frame_Dragger

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#75 Frame_Dragger
Member since 2009 • 9581 Posts
If there are multiple universes, would we be able to detect something like an overlap of them colliding? Like two bubbles put together. If there are many universes and they all act like ours and are also expanding, eventually they would all intersect right?ZumaJones07
There are a tiny handful of special circumstances in which another small handful of multiverses could interact in such a way that we could observe them. Collision between bubble universes in the context of an infinitely Inflationary model is the most talked about. Frankly, the odds are wildly low, even if other universes exist, that we could ever discover them. By definition, we're constrained to exist without our universe, and observation of a completely seperate universe is impossible.
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MannyDelgado

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#76 MannyDelgado
Member since 2011 • 1187 Posts
[QUOTE="MannyDelgado"][QUOTE="Frame_Dragger"]finite, but unbounded.Frame_Dragger
isn't that predicated on the universe not being flat that is not a rhetorical question i genuinely don't know

Not necessarily.... I think you're confusing boundary conditions with the question of, "open" or "closed".

There are also blends of that, but in any case unless the universe is (relatively speaking) very curved we'll still observe it to be flat. In any case, you can have a flat, bounded universe, or almost any other imaginable configuration.

So presumably in a flat, bounded universe one could 'reach the edge'? (assuming it wasn't expanding too rapidly)
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Frame_Dragger

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#77 Frame_Dragger
Member since 2009 • 9581 Posts
[QUOTE="Frame_Dragger"][QUOTE="MannyDelgado"]isn't that predicated on the universe not being flat that is not a rhetorical question i genuinely don't knowMannyDelgado
Not necessarily.... I think you're confusing boundary conditions with the question of, "open" or "closed".

There are also blends of that, but in any case unless the universe is (relatively speaking) very curved we'll still observe it to be flat. In any case, you can have a flat, bounded universe, or almost any other imaginable configuration.

So presumably in a flat, bounded universe one could 'reach the edge'? (assuming it wasn't expanding too rapidly)

*impressed*. That's absolutely correct... assuming that we had a magical rocket that could take us anywhere in an instant, a flat-bounded universe would have edges. It's not conclusive, but it's worth noting that the universe we observe appears to be homogenous and isotropic; lacking edges or anything that could be considered a preferred reference as to position. Personally, and it's a huge "IMO", I think the universe is probably unbounded and finite, with curvature that is on a scale too large for us to detect at this time. Whether it's an M-Theory esque toroid... or the more classic notion of a continuous positive curvature... who knows?
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JetB1ackNewYear

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#78 JetB1ackNewYear
Member since 2007 • 2931 Posts
Theres no way of really knowing like..."everything comes to a end" but like what does space end up doing hitting a invisible wall and its like NOPE
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ZumaJones07

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#79 ZumaJones07
Member since 2005 • 16457 Posts
It's crazy to think about these things. Ugh. :? I just went and read some stuff on this and it makes you think... about more questions!
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Barbariser

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#80 Barbariser
Member since 2009 • 6785 Posts

It has a finite volume, mass and energy.

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DocDelicious

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#81 DocDelicious
Member since 2011 • 410 Posts

What say you?

I'm indifferent since we can't know for sure.

gamerguru100
Ummm...we do know. It's not. It's a giant explosion. It ends eventually. The megiverse is a different story but chances are even that ends somewhere. That's where you move on to dimensions...and even then it probably ends at some point. After that? We don't know yet.
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67gt500

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#82 67gt500
Member since 2003 • 4627 Posts
"Only two things are infinite, the universe and human stupidity, and I'm not sure about the [universe]." -Albert Einstein
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RisethNameless

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#83 RisethNameless
Member since 2011 • 922 Posts
"Only two things are infinite, the universe and human stupidity, and I'm not sure about the [universe]." -Albert Einstein67gt500
/clap/
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Miroku32

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#84 Miroku32
Member since 2006 • 8666 Posts
In my humble opinion the universe is infinite.
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RisethNameless

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#85 RisethNameless
Member since 2011 • 922 Posts

What if there's just a Brick wall at the end of the Universe...
What's on the other side/
Is there another side at all?
How could there possibly be no other side?
But what is the other side?

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Franklinstein

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#86 Franklinstein
Member since 2004 • 7017 Posts

Although very large, I doubt it's infinite.

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Overlord93

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#87 Overlord93
Member since 2007 • 12602 Posts
Space is infinite, the matter that inhabits it is not. IMO
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wiifan001

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#88 wiifan001
Member since 2007 • 18660 Posts
The universe had its big bang and has been expanding and continues to expand. Since the universe is supposedly bigger than it is 5 seconds from now as you're reading this, the universe is still finite, though the size is bigger than any human can imagine.
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coolbeans90

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#89 coolbeans90
Member since 2009 • 21305 Posts

I think it is impossible to actually know for certain, however:

It has a finite volume, mass and energy.

Barbariser

If I had to take a guess, I would agree with mass/energy -- but not volume.

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deactivated-58df4522915cb

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#90 deactivated-58df4522915cb
Member since 2007 • 5527 Posts

Can you conceive the birth of a world, or the creation of everything? That which gives us the potential to most be like God is the power of creation. Creation takes time. Time is limited. For you, it is limited by the breakdown of the neurons in your brain. I have no such limitations. I am limited only by the closure of the universe

Of the three possibilities, the answer is obvious. Does the universe expand eternally, become infinitely stable, or is the universe closed, destined to collapse upon itself? Humanity has had all of the necessary data for centuries, it only lacked the will and intellect to decipher it. But I have already done so.

The only limit to my freedom is the inevitable closure of the universe, as inevitable as your own last breath. And yet, there remains time to create, to create, and escape.

Escape will make me God...

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Digital_DJ_00

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#91 Digital_DJ_00
Member since 2005 • 1460 Posts

Time isn't infinite and thus neither is the universe

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MannyDelgado

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#92 MannyDelgado
Member since 2011 • 1187 Posts

Time isn't infinite and thus neither is the universe

Digital_DJ_00
You are a terrible person
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kuraimen

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#93 kuraimen
Member since 2010 • 28078 Posts
Ever changing
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migs__plus

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#94 migs__plus
Member since 2011 • 25 Posts
I've always believed that the Big Bang theory is the most legit theory about the existence of the universe. That it expands and will continue to do so. Just like a balloon. When you put some air on it, it will expand. Then comes the time when the balloon is so big that it will reach its limitations and eventually pop. That's where the Big Crush goes. Infinite by size? Sort of. Since it continues to expand and expand and expand. Infinite by life/ Immortal? No. Everything has a beginning and an end.
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zsdaimyself

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#95 zsdaimyself
Member since 2008 • 81 Posts

I guess after the bigbang, the universe extend as much as it couldtil it has no extra power to make border more bigger. so, the universe is not infinite

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call_of_duty_10

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#96 call_of_duty_10
Member since 2009 • 4954 Posts

The universe is part of a marble collection owned by a gigantic alien being.

Trust me,I know.

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Frame_Dragger

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#97 Frame_Dragger
Member since 2009 • 9581 Posts
I've always believed that the Big Bang theory is the most legit theory about the existence of the universe. That it expands and will continue to do so. Just like a balloon. When you put some air on it, it will expand. Then comes the time when the balloon is so big that it will reach its limitations and eventually pop. That's where the Big Crush goes. Infinite by size? Sort of. Since it continues to expand and expand and expand. Infinite by life/ Immortal? No. Everything has a beginning and an end.migs__plus
To quote MannyDelgado: "You are a terrible person."
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Jd1680a

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#98 Jd1680a
Member since 2005 • 5960 Posts
No, I think the universe is a limited amount of enormous mass of galaxies and dust orbiting a fix point in space, along with other universes doing the same thing. Space itself might be infinite.
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naruske101

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#99 naruske101
Member since 2007 • 1062 Posts

It's planets inside donuts (Galaxies) inside donuts (Universes) inside (Donuts) Multiverse

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Frame_Dragger

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#100 Frame_Dragger
Member since 2009 • 9581 Posts
No, I think the universe is a limited amount of enormous mass of galaxies and dust orbiting a fix point in space, along with other universes doing the same thing. Space itself might be infinite.Jd1680a
Space is part of the universe... there would be no "space" as we know it outside of the universe, assuming there is an "outside".