In this blog post, we will scientifically explore whether the multiverse could actually exist or if it is just a concept of the imagination.
Everyone has probably seen fantasy novels, science fiction movies, or comics about another version of themselves or parallel worlds. These stories stimulate our imagination and paint a fascinating picture of a world where things that are considered impossible in reality happen. For example, you can imagine a person who looks and acts just like you living in another dimension, or you can imagine discovering another version of yourself living a completely different life in another world. So, what if these things don’t just exist in our imagination, but are actually happening in the universe we live in?
In fact, many physicists believe that there may be worlds that are similar to or completely different from the one we live in. They call this phenomenon “multiverse” in physical terms and have proposed various theories predicting the existence of multiple universes. This concept has had a major impact not only on science but also on philosophy and literature. In particular, the multiverse theory raises fundamental questions about the nature of human existence, the concept of free will, and the role of fate, providing a new perspective that transcends the existing scientific paradigm.
However, the multiverse theory has been the subject of controversy since it was first proposed. The multiverse theory still lacks sufficient evidence to be considered a complete theory, and there are many points that need to be supplemented. Although this theory presents very interesting possibilities, there is still a lack of concrete evidence and experimental verification. For this reason, the multiverse theory remains controversial among some scholars and is at the center of debate in the scientific community.
From here on, we will discuss the problems with these theories of multiple universes and debate whether multiple universes can truly exist. Physicists cite the following reasons for the inevitability of multiple universes.
First, from a quantum mechanical perspective based on probability, the introduction of the concept of multiple universes is necessary to explain why only one result is always derived from the various possible results. For example, let’s assume that we are tossing a coin. Everyone knows that there is a 50% chance that the coin will land on heads and a 50% chance that it will land on tails. This is where the problem begins. When you flip a coin, only one of two outcomes is possible, but what happens to the probability of the other outcome? In quantum mechanics, the probability of this one outcome cannot be ignored. Therefore, according to the multiverse theory, the remaining probabilities branch off like a fork in the road in a multiverse, and countless other outcomes exist that follow the remaining probabilities. From this perspective, the uncertainty principle of quantum mechanics is an important foundation for the multiverse theory, suggesting that all events in the universe can lead to various outcomes in multiple universes.
Second, the probability that beings like us exist in the universe has already been proven by our very existence. Therefore, if we assume that the space of the entire universe is infinite, the number of all possible cases is infinite, and the product of infinity and the probability of our existence is also infinite. Similarly, suppose we have 52 number cards with numbers from 1 to 52 written on them and shuffle them. When these cards are shuffled randomly, the probability of them being arranged in order from 1 to 52 is extremely low. However, if we shuffle the cards an infinite number of times, eventually the cards will be arranged in order from 1 to 52 an infinite number of times. In other words, we arrive at the conclusion that there are countless beings like us in the universe, which leads to the conclusion that multiple universes exist. Theoretically, we arrive at the conclusion that all possible universes can exist, and this concept provides deep insight into the nature of the universe and the position of humanity.
In order to consider this multiverse theory, we need to reconsider the definition of infinity. Infinity refers to a state of continuous growth, a state without end. In the multiverse theory, assuming that the size of the universe is infinite, the probability of our existence is multiplied to suggest that there are countless beings like us. However, what if the probability of our existence is one in infinity in the first place? In the universe, life forms such as humans may exist based on the probability of the right molecules coming together if space is infinite. However, for humans like us to be born, an even more infinite probability would be necessary, and in order to match our ever-changing behavior, an enormous probability would have to be multiplied every hour, or even every second. Therefore, the probability of humanity like us existing is an infinite fraction multiplied by an enormous probability, which is also an infinite fraction, so the conclusion is that it is an infinite fraction. This discussion raises serious questions about the reliability of the multiverse theory and calls for a reexamination of the physical interpretation of the concept of infinity.
Therefore, multiplying infinity by infinity is problematic because there is no guarantee that it will result in infinity due to the extreme concept of negation. Furthermore, the multiverse theory is based on the premise that the size of the entire universe is infinite. However, according to Hubble’s law, the size of the observable universe is approximately 2 million light-years in radius. The rest of the universe cannot be observed. Therefore, even if the multiverse theory is established, it is difficult to accept because there is no way to prove the theory through actual observation. The multiverse theory is an interesting theory, but due to the difficulty of experimental verification, it is at the center of debate in the scientific community, which is a major obstacle to the development and application of the theory.
So far, we have discussed the perspectives of the multiverse theory and its problems. It is undeniable that the multiverse theory, which suggests that there are countless other universes besides our own, presents a new paradigm for the interpretation of the universe. However, in order for this paradigm to be truly accepted as a scientific theory, experimental evidence and logical consistency are essential. In order for the multiverse theory to be established as a formal theory, solutions to these logical problems must be presented, and many other issues must be addressed. The advancement of science has always been accompanied by new challenges, and the multiverse theory is no exception. Through theoretical discussion and experimental verification, we will be able to take another step toward a deeper understanding of the nature of the universe.
