The ‘Big Bounce’ Theory Explaining the Universe’s Timeline Has Major Shortcomings

The ‘Big Bounce’ Theory Explaining the Universe’s Timeline Has Major Shortcomings
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The generally accepted idea among cosmologists is that even the Universe itself will face its demise one day. They also know that it had a starting point, which is known as the Big Bang. Surprisingly or not, the Bible teaches us the same things in a rudimentary way, clearly emphasizing that the Universe had a beginning and will have an end as well. It surely makes you wonder how some could possess such knowledge about the Cosmos thousands and hundreds of years ago!

But surely the thought of the Universe itself dying one day is not pleasing at all. While people generally accept the fact that they are just mere mortals, in the end, the idea that not even the Universe can bypass death is extremely disturbing.

The Universe might go through a Big Bounce, but there’s a catch

Some astronomers came up with the Big Bounce theory, which contradicts the model that proposes the evanescent Universe that most scientists accept. While we’re not suggesting one bit that those astronomers haven’t been thinking objectively when they came up with their theory, it needs to be said that there are still some shortcomings there. 

Long story short: the Big Bounce theory implies that the Universe will stop expanding at some point, collapse back towards the singularity from where it came from, and ultimately be reborn once again thanks to another event similar to the Big Bang. The pattern would go on forever, which automatically means that the Universe will never die. Furthermore, the Universe might have existed even before the Big Bang if the theory is correct.

ScienceAlert now reveals what problems astronomers have with the Big Bounce theory, revealing what a new study from the Journal of Cosmology and Astroparticle Physics has to say.

The Big Bounce Theory not only implies that the Universe would live forever – it also implies that it never had a beginning in the first place, which puzzles things up a lot for scientists. Most astronomers accept the idea that our Cosmos was born at some point due to the Big Bang event that occurred about 13.7 billion years ago.

Will Kinney, a physicist from the University at Buffalo, said:

People proposed bouncing universes to make the Universe infinite into the past, but what we show is that one of the newest types of these models doesn’t work,

In this new type of model, which addresses problems with entropy, even if the Universe has cycles, it still has to have a beginning.

But if that’s not enough to make you conscious about the issues of the Big Bounce model, get hold of this: if the Universe would indeed be the outcome of an everlasting “bounce,” the level of entropy, meaning the level of disorder, should be a lot higher than it is. In fact, the level of entropy itself resulting from a Big Bounce would make the existence of the Universe impossible. 

Kinney also explained:

Long story short, we showed that in solving the entropy problem, you create a situation where the Universe had to have a beginning,

Our proof shows in general that any cyclic model which removes entropy by expansion must have a beginning.

However, even the simple thought that the Universe had a beginning, which leads to the idea that nothing else existed before the Big Bang, also boggles the minds of scientists.

However, something else must have indeed existed before the Big Bang, although there’s no clue what might have been. What’s for sure is that no astronomer or astrophysicist can provide an irrefutable answer so far. There seems to be no scientific way to ‘see’ beyond the Big Bang, but who knows, technology is always evolving!

 

 


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Cristian Antonescu

Even since he was a child, Cristian was staring curiously at the stars, wondering about the Universe and our place in it. Today he's seeing his dream come true by writing about the latest news in astronomy. Cristian is also glad to be covering health and other science topics, having significant experience in writing about such fields.

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