<p>Nobody really has any idea what "dark energy" is. But there is a principle known as Occam's razor. It can be expressed in various ways, for example "When an observation can be explained in many ways, the one with fewest assumptions should be used." </p>

<p>To explain the properties of dark energy as being due to changing pressure of hyperspace, requires the assumption that "hyperspace" exists, that it has a property that pressurizes the universe, that this "pressure" is changing, and that affects the rate of expansion of the universe. </p>

<p>There are <a href="https://en.wikipedia.org/wiki/Dark_energy#Theories_of_explanation" rel="nofollow">other hypothesis</a>: a cosmological constant, or a as yet undiscovered force field. None have much observational evidence, but have the benefit of requiring fewer assumptions.</p>

<p>As Rob mentioned what you describe is similar to "<a href="https://en.wikipedia.org/wiki/Brane_cosmology" rel="nofollow">brane cosmology</a>", in which the universe is embedded in a higher dimensional space. These could influence our space, <a href="http://arxiv.org/abs/hep-th/0304256" rel="nofollow">by controlling the scale of a cosmological constant, making it small, but non-zero</a>. As with much of string theory, the experimenters are well behind the theorists.</p>

CC BY-SA 3.0
2015-11-09T18:54:39.563Z
2015-11-09T18:54:39.563Z
James K
<p>It seems to me that the expansion of the universe is only being looked at one way. a repelling force, basically being the opposite of gravity.  After pondering this for many nights, I began to wonder if its possible that the changing pressure outside the universe could cause the expansion thst we observe.</p>

CC BY-SA 3.0
2015-11-09T13:14:04.600Z
It sounds like you are trying to articulate "brane" cosmologies. https://en.wikipedia.org/wiki/Brane_cosmology
ProfRob
CC BY-SA 3.0
2015-11-09T15:51:24.907Z
We've yet to see a proof of existence for any of this hyperspace stuff, so we can attribute lots of different properties to other dimensions without fear of being proven wrong.
Wayfaring Stranger
CC BY-SA 3.0
2015-11-11T04:53:30.353Z
Article on a similar idea.    http://www.universetoday.com/104863/goodbye-big-bang-hello-hyper-black-hole-a-new-theory-on-universes-creation/     Dark Energy was discovered in 1998 and the idea that our universe is wrapped around an expanding 4 dimensional object was a kind of next logical step.   It's certainly possible, but it's also possible that this theoretical 4th dimension doesn't exist.   Observations so far have not detected any curvature that we might expect if our 3 dimensions were wrapped around a 4th.
userLTK
<cosmology><dark-energy>
could dark energy be a force coming from the hyperspace outside the universe?
Tony Delk
# could dark energy be a force coming from the hyperspace outside the universe?

(Asked by: username_0 on 2015-11-09)

It seems to me that the expansion of the universe is only being looked at one way. a repelling force, basically being the opposite of gravity. After pondering this for many nights, I began to wonder if its possible that the changing pressure outside the universe could cause the expansion thst we observe.

**Tags:** cosmology, dark-energy
> **Comments:**
> **username_1**: It sounds like you are trying to articulate "brane" cosmologies. https://en.wikipedia.org/wiki/Brane_cosmology  
> **username_2**: We've yet to see a proof of existence for any of this hyperspace stuff, so we can attribute lots of different properties to other dimensions without fear of being proven wrong.  
> **username_3**: Article on a similar idea.    http://www.universetoday.com/104863/goodbye-big-bang-hello-hyper-black-hole-a-new-theory-on-universes-creation/     Dark Energy was discovered in 1998 and the idea that our universe is wrapped around an expanding 4 dimensional object was a kind of next logical step.   It's certainly possible, but it's also possible that this theoretical 4th dimension doesn't exist.   Observations so far have not detected any curvature that we might expect if our 3 dimensions were wrapped around a 4th.  

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## 1 answers

### Answer by username_4 on 2015-11-09. Score: 3

Nobody really has any idea what "dark energy" is. But there is a principle known as Occam's razor. It can be expressed in various ways, for example "When an observation can be explained in many ways, the one with fewest assumptions should be used."

To explain the properties of dark energy as being due to changing pressure of hyperspace, requires the assumption that "hyperspace" exists, that it has a property that pressurizes the universe, that this "pressure" is changing, and that affects the rate of expansion of the universe.

There are [other hypothesis](https://en.wikipedia.org/wiki/Dark_energy#Theories_of_explanation): a cosmological constant, or a as yet undiscovered force field. None have much observational evidence, but have the benefit of requiring fewer assumptions.

As Rob mentioned what you describe is similar to "[brane cosmology](https://en.wikipedia.org/wiki/Brane_cosmology)", in which the universe is embedded in a higher dimensional space. These could influence our space, [by controlling the scale of a cosmological constant, making it small, but non-zero](http://arxiv.org/abs/hep-th/0304256). As with much of string theory, the experimenters are well behind the theorists.


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