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Post by Godzillasaurus on Jun 4, 2014 17:49:06 GMT 5
I recently decided to make this topic after asking this question in the "Answer with a question" thread: what do you think is beyond our universe?
Personally, I like to think of it as infinite, so this there would be nothing beyond it. But if that is an unreasonable thought and something was beyond our universe, personally I would support the idea of there being absolutely nothing, as it is still growing. Although I too am having trouble grasping this thought.
So, what do you guys think?
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Post by Vodmeister on Jun 4, 2014 21:27:15 GMT 5
Depends on what you define as "The Universe".
If the universe is all of space and time, then by definition, nothing is beyond the universe, because anything that was beyond the universe and existed in space and time, would automatically become a part of the universe.
The only exception to this rule could be a potential spaceless and timeless entity (eg. a god).
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Post by Godzillasaurus on Jun 4, 2014 22:53:09 GMT 5
Define "nothing"
You mean just a plain white or black void?
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Deleted
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Post by Deleted on Jun 4, 2014 23:40:26 GMT 5
Probably black, as black is the lack of colour.
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Post by Vodmeister on Jun 5, 2014 6:19:59 GMT 5
The scientific and philosophical definitions of nothing are not identical.
Science defines "Nothing" as the quantum vacuum.
Philosophy defines "Nothing" as absolute nothingness, not the presence of anything, not even space.
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Deleted
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Post by Deleted on Jun 5, 2014 12:10:35 GMT 5
Nothing except other universes(I believe in a "multiverse").
Since spacetime does not exist outside a universe, exiting this universe would immediately take you to another(no space = zero distance) imo
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Post by Vodmeister on Jun 5, 2014 21:35:00 GMT 5
Since spacetime does not exist outside a universe, exiting this universe would immediately take you to another(no space = zero distance) imo If space between these universes does not exist, there is also a chance that it would be impossible to move from one universe to another (as you need space to move through). However, most scientists do not believe in the Philosophical idea of absolute nothingness. They believe that the quantum vacuum is the closest thing we have to "nothing". |
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Post by Godzillasaurus on Jun 6, 2014 2:03:20 GMT 5
What exactly is this "quantum vacuum"? Try to use basic terms
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Post by Vodmeister on Jun 6, 2014 10:15:01 GMT 5
In quantum mechanics and quantum field theory, the vacuum is defined as the state (that is, the solution to the equations of the theory) with the lowest possible energy (the ground state of the Hilbert space).
In simpler words, the quantum vacuum is basically the space between galaxies. Space exists there, but almost nothing else does.
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Post by creature386 on Jun 6, 2014 18:50:02 GMT 5
Nothing except other universes(I believe in a "multiverse"). I agree. BTW, we maybe can specify observable universe because this makes the discussion a bit easier. |
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Post by theropod on Jun 6, 2014 20:17:36 GMT 5
If there was space just like between galaxies in this universe, shouldn’t that just be considered part of this universe?
Anyway, it seems most logical to me that the universe is infinite and that by definition everything that exists is in the universe.
It doesn’t really make sense that there is something beyond the universe that is not part of the universe (that’s a sematic issue though, but the point about the universe was that it is infinite, wasn’t it?), and there being nothing (as in "no time, no space, really freakin’ nothing") meaning that it was not infinite doesn’t either (after all, it would be impossible to get out of the unioverse or even prove that that nothingness exists).
I just realised that this field of physics (if you even want to call it that) is really far beyond my grasp…
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Post by creature386 on Jun 6, 2014 21:20:48 GMT 5
If there was space just like between galaxies in this universe, shouldn’t that just be considered part of this universe? Maybe, but if we specify observable universe, the question becomes harder. Especially because we don't know if the nothing will ever come of if there is simply an infinite amount of galaxies and planets. |
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drone
Junior Member Rank 1
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Post by drone on May 21, 2015 12:28:13 GMT 5
Nothing at all, every single thing is in the universe, the universe is not an object similar to a cluster, but simply everything.
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Post by creature386 on May 22, 2015 1:27:23 GMT 5
Just a question, if the universe is everything, how can people say it expands? I mean, there isn't any more space that could be displaced.
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Post by Vodmeister on May 22, 2015 1:33:36 GMT 5
Just a question, if the universe is everything, how can people say it expands? I mean, there isn't any more space that could be displaced. Another way of looking at it: If there is nothing beyond the universe, then technically, there isn't anything that could stop it from expanding. |
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