End of the universe paradox? I am confused , can you explain me please?

[iwbl18]

Hi I am wondering If there is an end of the universe, because I think even the whole universe get destroy, one day a new big bang may occur because It is infinitive maybe after trillions of years or more but It might be? am I wrong? Is that impossible to occur a new universe in a number of infinitive years? Sorry for my English, and Thanks.

[pavelcherepan]

There are plenty of theories on how the Universe will end and one of them is referred to as <Big Bounce>, which sounds like what you're talking about. But anyway, if you haven't done so already, have a look at some other options how things will go:

 

<Ultimate fate of the Universe>

[Nicholas Kang]

As far as I am concerned, your answer has to do with the geometry of our universe. It all depends on the critical density of our universe. If observations find out that our universe overall mass-energy density exceeds the critical density, then our universe will stop expanding and contracts, which will come to Big Crunch. If the universe`s overall mass-energy density is exactly 10<sup>-23</sup> g/m<sup>3</sup> ,then our universe`s expansion will slow down. If the mass-energy density is lower than the critical density, then our universe will expand at the same rate forever.

 

The mass-energy density determines the curvature of space-time, which in turns, dictates the fate of our universe. There are 3 configurations, namely open, flat and closed, which are named in accordance with the three conditions I mentioned above respectively. In an open configuration, the overall curvature is negative and 2 beams of light will diverge-the distance between increasing over time. While in a flat universe, 2 beams will remain parallel forever. In a closed configuration, a single beam of light will eventually curve around the entire universe and return, hitting you on the back of the head.

 

Now, the question is, what is the overall curvature of our universe? Well, a number of observations by looking for clues in the Cosmic Microwave Background Radiation has shown that our observable universe is flat. Currently, astronomers have found out that our universe is not only expanding, but the expansion is accelerating as well. To explain the mysterious force that accelerates the expansion, astrophysicists turn to their friends-particle physicists to search for undiscovered particles in particle accelerators, like the LHC in CERN, Europe, which is restarted recently. So, I personally think that you needn`t have worried so much.

 

Based on the rate of current scientific development, I believe we will have enough time before the worst. I have something to share, though, that is, escape to another universe through white holes during the last moments before The Worst. Such idea was explored by Michio Kaku, a theroetical physicist in his book Hyperspace. Maybe you have left out the "multiverse" concept. You can seek shelter in another universe, can`t you?

 

Let`s hold hands and keep our fingers cross.

Edited April 12, 2015 by Nicholas Kang

[iwbl18]

8

As far as I am concerned, your answer has to do with the geometry of our universe. It all depends on the critical density of our universe. If observations find out that our universe overall mass-energy density exceeds the critical density, then our universe will stop expanding and contracts, which will come to Big Crunch. If the universe`s overall mass-energy density is exactly 10<sup>-23</sup> g/m<sup>3</sup> ,then our universe`s expansion will slow down. If the mass-energy density is lower than the critical density, then our universe will expand at the same rate forever.

 

The mass-energy density determines the curvature of space-time, which in turns, dictates the fate of our universe. There are 3 configurations, namely open, flat and closed, which are named in accordance with the three conditions I mentioned above respectively. In an open configuration, the overall curvature is negative and 2 beams of light will diverge-the distance between increasing over time. While in a flat universe, 2 beams will remain parallel forever. In a closed configuration, a single beam of light will eventually curve around the entire universe and return, hitting you on the back of the head.

 

Now, the question is, what is the overall curvature of our universe? Well, a number of observations by looking for clues in the Cosmic Microwave Background Radiation has shown that our observable universe is flat. Currently, astronomers have found out that our universe is not only expanding, but the expansion is accelerating as well. To explain the mysterious force that accelerates the expansion, astrophysicists turn to their friends-particle physicists to search for undiscovered particles in particle accelerators, like the LHC in CERN, Europe, which is restarted recently. So, I personally think that you needn`t have worried so much.

 

Based on the rate of current scientific development, I believe we will have enough time before the worst. I have something to share, though, that is, escape to another universe through white holes during the last moments before The Worst. Such idea was explored by Michio Kaku, a theroetical physicist in his book Hyperspace. Maybe you have left out the "multiverse" concept. You can seek shelter in another universe, can`t you?

 

Let`s hold hands and keep our fingers cross.

Thanks, so my theory is possible right?