The Future

The Many Worlds Theory

Many physicists and scientists hypothesize whether it could be possible to have parallel universes that hold different versions of us and have encountered the possible events that we may not have encountered. It is a crazy concept to wrap your head around, but it is, nonetheless, quite an intriguing one as well. Let’s explore the research behind the existence of parallel worlds.

The Many Worlds Theory

Hugh Everett agreed with Niels Bohr’s theory about how the quantum world works and his idea of superposition and wave functions. However, there was one crucial aspect on which Everett did not agree with Bohr. Everett did not believe that the measurement or observation of a quantum object forces it to change.  Instead, he believed that measuring a quantum object will actually cause a split in the universe. The universe duplicates and splits into a universe with every possible outcome present from that measurement. An example of Everett’s theory would be that if the wave function of an object is both a wave and a particle, then the measurement of that object will lead to two likely outcomes: the object will be measured either as a wave or a particle. A physicist’s observation of an object makes the universe split the object into two different universes in order to accommodate all the likely outcomes. Thus, in one of the universes, the scientists would find the object to have been measured in particle form. In another universe, the exact same scientist would be measuring the object as a waveform. These situations would also be an explanation for finding more than one measurement option for an object in different states. The many worlds theory may be extremely difficult to actually fathom, but it also means that beyond quantum levels, it has many implications. If Everett’s theory holds true, then it means that the universe splits every time an action is performed or not performed. This theory implies that in a life and death situation where you lived, in a parallel universe, you would be dead. Thus, the Many Worlds theory is extremely unsettling for most people. An interesting (albeit disturbing) aspect of the Many Worlds theory is that it does not take into account the linearity of time as the concept that we have already established in this universe. The Many Worlds theory would not be showing an event, for example, the Vietnam War as a timeline, but rather each action that was taken would show alternative outcomes.

How Can We Make Sure The Many World Interpretation is Correct?

We cannot know if our parallel world version is alive or dead, so how can we be certain that they exist in the first place? Of course, Everett’s theory was not taken seriously for many decades as it did not, understandably, make sense to many. Many other theories came to light and divided up areas of quantum physics similar to the division of psychological schools of thought. Albert Einstein’s phantom theory known as, ‘the theory of everything,’ is being continually researched, as the theory sets out to sum up answers to all physics-related questions. Similarly, theorists such as Michio Kaku who came up with the String theory feel like they are close to finding out the theory of everything, thus being able to answer the question of whether parallel worlds exist definitively.

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