multiverse

multiverse

Multiverse: Another universe

Just as people are interested in other planets, there is no end to people's interest in other worlds. And there is a huge research on this. So in today's discussion in an attempt to quench that thirst, multiverse or multiple universes.

The cosmos is a place where innumerable galaxies, planets, stars, etc. exist. There are about 100 billion galaxies in a universe. And each galaxy contains about 100 billion stars. Each of these stars is a solar system. And the number of planets and satellites in the solar system is not fixed. Our earth is under a star called the Sun and is located in a galaxy called the Milky Way. It is also thought that the diameter of the Milky Way is 10 billion light-years. We all know this more or less. Now the mystery is this universe. Remember that the universe refers only to the observable universe or the visible universe. And so far we have only been able to unravel the mystery for 90 billion light years. So our universe is up to 90 billion light years.

Observable Universe

There is only one way to know the shape, size, material, etc. of something. That object must be observed from outside the object. We have not yet been able to observe our universe from the outside. And that is why there is so much mystery. Infinite also has a limit. Everything within the limits. Earlier, the birth of our universe was considered to be infinite. But later it was found out that this infinite time is actually 13.6 billion years. It is caused by the Big Bang. Now we will try to know what is multiverse, parallel universe and how logical its existence is.

Multiverse or multiple universes. The concept of multiverse first came from these three branches of knowledge of cosmology, quantum mechanics and philosophy. The American philosopher William James first used the term multiverse in 1795. Another word that comes to mind when you hear the word multiverse is parallel universe. Are the two the same? There are very few differences. The term multiverse represents multiple universes. The parallel universe also carries some more meaning with it. Parallel universe refers to some more universes, just like ours. But there must be a slight difference. That is, the parallel universe acknowledges the existence of life in another universe. Which does not multiverse.

Possible multiverse

And the elements of the Universes of the Parallel Universe, the formation of the planets and even the formation of other creatures, including humans, are exactly the same. But from what I said, there are some differences. Suppose an asteroid hit our Earth 65 million years ago. The result is the extinction of dinosaurs. Maybe there are still dinosaurs on Earth in another universe. The evolutionary system of the organism there is different. Again the happy people of this world may be extremely miserable in another world. All in all, the parallel universe destroys the uniqueness of anything. If the parallel universe was real, nothing would be more unique. Everything we get from Newton's law also has the opposite effect. Why physics is applied in real life. So it is not uncommon to have a parallel universe. We can also count the time up to the Big Bang. We can't diagnose the events that preceded it, not even the Big Bang. So it is difficult to say whether there were any other Big Bangs before, during or after the Big Bang. And these reinforce the argument in favor of multiverse. Here are 5 scientific arguments on what kind of multiverse would be if it were real:

Infinite Universes

We have not yet been able to determine the exact shape of space-time. The most acceptable size is that it will be flat and spread out forever. Which directly supports multiverse. Another thing is that in this case the universe can be formed alone and its repetition will continue. This is because particles can be formed by forming in innumerable ways.

Bubble Universes

The Bubble Universe is based on the Eternal Inflation Theory. This was explained by Alexander Vilenkin, a cosmologist at Taft University. After the Big Bang, our Universe grew faster than light for 10 ^ -38 seconds. In the language of matter, this increase is called inflation. Now imagine, our Universe is a bubble in the middle of a huge pile of bubbles. It doesn't matter if the other bubbles or the universes have inflation or not, it will be like our universe. Inflation time may be more or less. In that case the laws or formulas containing the substances of each universe will be different. And the Universe will be in a state of non-connection with each other.

Daughter Universe

This is my favorite theory personally. Hugh Everett proposed this theory based on the Theory of Quantum Mechanics. According to Everett, when the Universe is formed, the Universe itself makes all possible copies according to the rules of probability. And the creature chooses the most suitable uvers for him to survive. Let me give you an example. Suppose you are looking for an article in Bengali for Multiverse. I found a lot in Google search. Now you have chosen this science-based article to read. There were many more options in front of you. But it seemed more sweet to you. So you didn't go the other way. And this is the theory of the Daughter Universe. And it is also clear why life has been transmitted in this universe. Because the rest of the possible copies of the Universe were not suitable for transmission. But this theory leaves a question. Is the reality around us really real? And how much it is! The Australian mathematician Hannis Moravek discovered an experiment for the mysteries of multiple universes using this theory. Its name is Quantum Suicide.

Mathematical Universes

This universe is different than all the others. MIT Professor Max Tagmark is the originator of this theory. According to him, there must be a universe that follows the rules of mathematics, not matter. The way we have known the Universe for so long, this Universe will be very different.

The concept of the Mathematical Universe

According to him, this universe will run quite independently. If humans or other creatures were to be there, they would not be able to make any exceptions to the natural laws of the universe. Because the Universe will run on its own mathematical rules, it is not dependent on anyone and it is immutable.

Parallel Universe

For the Parallel Universe we have to go back to the beginning again. Assume that space-time is flat and its expansion is continuous and infinite. Universe particles are able to create a total of 10 ^ 10 ^ 122 universes by changing their position. In all these universes, there will be one planet in place of Earth. In most of the Universe, the planet Earth will repeat. According to the rules of permutation, even if there is a difference in the position of only one particle between two universes. However, they will be caught as two separate universes. Then it is understood that many worlds can be found.

Multiple worlds in support of the Parallel Universe

Then there will be a world in which there will be a difference of one, two or three particles. So it is natural for life to exist there. The famous physicist Stephen Hawking worked with multiverse before he died. But could not go too far. The paper was published in May 2016. He has spoken in favor of multiverse. This was today's discussion about multiverse. There are many more interesting things about multiverse. And there is a strong argument against multiverse. Many people are reluctant to believe in multiverse. If everyone likes this blog and if you want to know about the rest of the issues, I will try to write about them. Thank you.

References: nasa, britannica.com, space.com, IMAX HD, edge.org, thescienceexplorer.com.