(ORDO NEWS) — A cyclic model of the universe can fill in some of the biggest gaps in our understanding of how space and time work.
The theory of the Big Bang, although generally accepted, but the further, the more shortcomings scientists find in it. But the cyclical model can avoid these problems.
The generally accepted understanding of the universe is that the Big Bang happened about 13.8 billion years ago. In the first seconds, the laws of physics acted completely differently than they do now.
Everything that would eventually become matter ignited in a matter of seconds first particles like electrons and photons, and eventually neutrons and protons, the building blocks of our atoms.
The first seeds of stars, planets and galaxies began to spread through time and space after this process began. This happened in such a way that the various objects in the universe were distributed very evenly.
Physicists suggest that shortly after the Big Bang, something called “inflation” occurred. In fact, what was once a tiny, pieced together universe has expanded very rapidly.
Then the rate of expansion slowed down, but the expansion itself continued. Inflation is part of the current Standard Model of the Universe, called the lambda cold dark matter model (lambda CDM). But there are other theories that describe the evolution and behavior of our cosmic world.
Cyclic model of the universe
The cyclic model of the universe is designed to solve some of the seemingly intractable problems of the big bang and inflation models.
It allows you to go beyond the Big Bang, but without any magical solutions to the problems that arise. This is because everything in it is quite logical and, most importantly, according to this theory, time has always existed in the past.
Scientists have proposed a cyclical model that can work mathematically in several ways . Steinhardt and Turok’s cyclic universe model is one of them. Its basic principles are as follows: The Big Bang was not the beginning of time; there was a previous phase that preceded it, with numerous cycles of contraction and expansion, which repeat themselves endlessly; and the key period determining the shape of our universe was right before the so-called explosion. At this time, according to the theory, there must have been a process called the Big Crunch.
Thus, instead of the beginning of time emerging from nothing, the cyclic model assumes that for a long time the Universe was preparing for the next explosion.
Such a theory solves the same problems as the inflationary one, but goes even further. The existence of a time before the Big Bang eliminates the singularity problem, but it also takes into account dark matter, string theory, and quantum fluctuations.
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