Inflation could tear Spacetime apart. Maybe.

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Inflation could tear Spacetime apart. Maybe.

Postby Event Horizon on September 12th, 2018, 6:47 pm 

We all know spacetime is inflating. There is a potentially serious problem though. If it does not stop inflating, eventually the strong and weak nuclear forces will no longer be able to impart cohesion to matter, to hold it together. If any math/physics guys want to come up with how much cohesive dissonance is too much, it could prove interesting. Could it be yet another way for the universe to die I wonder?
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Re: Inflation could tear Spacetime apart. Maybe.

Postby Watson on September 14th, 2018, 9:43 pm 

I think there is a serious difference between inflation, and inflating. So no. Now dimensional expansion is another matter. But still, no.
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Re: Inflation could tear Spacetime apart. Maybe.

Postby Braininvat on September 15th, 2018, 10:44 am 

Inflation happens on a cosmological scales, between galaxies, not within them or at a local scale.
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Re: Inflation could tear Spacetime apart. Maybe.

Postby davidm on September 15th, 2018, 10:58 am 

Braininvat » September 15th, 2018, 8:44 am wrote:Inflation happens on a cosmological scales, between galaxies, not within them or at a local scale.


That is true now, but the Big Rip hypothesis holds that expansion will eventually filter down to everything, even subatomic particles, thus ripping everything apart.
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Re: Inflation could tear Spacetime apart. Maybe.

Postby Braininvat on September 15th, 2018, 12:15 pm 

Yeah, if the equation of state has a ratio of pressure to energy density that's less than -1, then you could have a dark energy that eventually rips apart even subatomic particles. If w just equals -1, then you've got the old simple case cosmological constant. The observed w is very very close to -1, so I guess it all depends on which side of that value it lies.
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Re: Inflation could tear Spacetime apart. Maybe.

Postby Event Horizon on September 17th, 2018, 4:15 pm 

What are you saying guys, my idea is conceptually viable? There must be a limit where matter loses cohesion due to the nuclear forces being literally overstretched. If we knew what the limit was, we could calculate when it's likely to happen. We might have a rough date to when the Universe is irrevocably disintegrated.
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Re: Inflation could tear Spacetime apart. Maybe.

Postby Braininvat on September 17th, 2018, 6:51 pm 

https://en.m.wikipedia.org/wiki/Big_Rip

It's just one theory, right now. But if w is below that critical value, then yes, in many billions of years it would all come apart.
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