What If The Multiverse Existed: Theories and Explanations

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   As a result of the Big Bang, our unique universe existed approximately 13.7 million years ago. Then, human nature started moving in both time and space. However, we have a question: what If multiple universes exist? Many tv series such as Stranger Things or movies like Avengers used multiple universes theory. 



   Astronomers are limited to observe the universe because the observable universe is much larger than we thought. Fortunately, mathematics is one of the most powerful guides to understand realms and reality. According to mathematical models, several scientists claimed that an unknown trigger caused it to expand in 2 or more dimensions. 


   There are dozens of possible explanations why the multiverse is possible but 2 interesting theories stand out:


1- Bubble Theory: 

   This explanation belongs to Alexander Vilekin. He claimed that our universe is a bubble that is full of stars and planets in a network of bubble universes. There is no connection between those bubbles, yet. That is the reason why other universes may have really different physical properties. There is not yet any experimental evidence.


2- Membrane Theory: 

   According to the researches, If space had 9 dimensions rather than 3 (width, breadth, and height) there would be plenty of space for other universes. One brief example may help to clarify easily. Our universe is a piece of paper which is three dimensional from a newspaper. The newspaper which is 9-dimensional consists of many 3 or more pages. There is not yet any experimental support such as all theories.


   It is really hard to find the answers to the multiverse. I believe that an extremely huge universe did not exist just for the humanity in the world. It must have an explanation to understand our cosmos. I hope that one day, we will find the answers.

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