Some popular theories:Previous time of Big Bang

What is the start of time? End
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The information data we have that indicates that our universe was not life-long. That is, physicists are almost certain that the Steady State Theory of the Blau of the universe is actually a mistake. Our universe was like that, still there is, it will be in the future, the biggest enemy of the theory of Hell is the second source of thermodynamics. The second source of thermodynamics tells us that entropy or chaos always increases with time. Which goes directly against the State Standby State of Hell.

Our universe was a start. About 14 billion years ago our universe started. A huge number of 14 billion. It's a huge time. Our universe was a beginning, perhaps the most important discovery in the history of astrophysicist. That is now universally accepted. The history of our universe is very old. Especially if you go to compare this with life after the onset of life on Earth.

Physicists are almost sure about what happened in our universe after the Big Bang. But what was the big bang before? What is the Big Bang? The most reliable theory about this, or what do theories say?

One of the most modern theories about the Big Bang phenomenon is that one type of inflection from quantum fluctuation or the emergence of our whole universe with the rapid expansion of the speed.
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In 2013, Bisep-II monitored a topic that was supposed to be an evidence of our original universe's infusion. But later, they were found to be wrong in the results of the test.

If the idea of ​​the infusion is true, then there is a possibility that our universe is a big multiverse or a small part of the universe. Also the most popular section of Inflation Theory is Eternal Inflation, which tells us that the universe is constantly being formed or, the Big Bang is going on continuously. Our universe is the result of only one of those Big Bangs.

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Another alternative is that our universe is created from a black hole or from a black hole. To understand this idea, we need to understand what the black hole is? When a very mass-filled star (3-5 times greater than the Sun), when its life has been able to override Pauli's boycott policy at the end of his life, it becomes its own gravitational attraction, going from small to small, and once it becomes an unstoppable point.

It is called the singularity of the blackhole. In this singularity the energy density is infinite. Because, we know, density = mass / volume. Here the volume of the star is zero.

Therefore, the density of the blackholes becomes infinite during this singularity. For this infinite density, its gravitational force is also very high. General relativity tells us that the greater the number of masses in the space, the greater the curvature of the space-time.

That is to say, in a straightforward language, the time will start moving slowly around an object or something of more density. What would be the state of space-time of infinite density? There will be nothing in place or space. The time will be fixed at that time. At the center of the black hole or in singularity, the time is fixed.

This same situation of span-time is also seen during the Big Bang period. To understand the matter, the first sight of Big Bang Theory will have to be exposed to Hubble's expansion. In 1929, Hubble discovered red telescope of galaxies through red telescope or red shifts that our galaxy's galaxies are slowly moving away gradually.

If our universe is growing slowly or expanding, then it can have the same meaning, and if we run the time in the opposite direction, then we will see that all of the universe was in a very small place at one time. Which points us towards Big Bang theory. In this way running time to run the wheel will be available at one time which was not before time and time.

Everything was densely embedded in a very small point. Is this condition match the condition of blackhole singularity? Yes, this condition is called the condition of the Big Bang period, which is similar to the condition of the black hole. Both singularities are time zero.

Origin of theory of universe emergence from the Blackhole, from the idea that the Big Bang singularity was actually a singularity of a black hole.

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This theory tells us that there were many universes before our universe. If we call our universe the nth universe then the n-1 universe is turned into a black hole in some way or the other, and since that black hole, we have the origin of this nth universe.

Once upon a time, our universe will start shrinking through the Big Crunch and become an infinite black hole. And from there the emergence of the n + 1th universe.

Today, we know very briefly about what happened before Big Bang or, the most popular two theories about how the Big Bang was done. In future, these will be tried to explain the theories and related topics. Thank you