Is one vast, ancient and mysterious universe not enough? Well, it turns out there are others. Among physicists, this concept is not controversial. Our universe is just one in an unimaginably large ocean of universes called the multiverse. How many universes do researchers think there are?
How many universes do researchers think there are? If the concept of the multiverse isn’t already hard enough to understand, physics describes several types of multiverse. The easiest to understand is called the cosmological multiverse.
The point here is that the Universe expanded at an astonishing rate in a fraction of a second after the Big Bang. During this period of inflation, quantum fluctuations occurred that caused bubbles to separate from the universes, which in turn began to expand and form other bubbles. The Russian physicist Andrei Linde proposed this concept, suggesting that there are an infinity of universes that are no longer causally connected to each other, thus free to develop in different ways, writes NewScientist.
How many universes do researchers think there are?
Outer space is immense, perhaps even infinite. If you travel far enough, some theories suggest that you could meet your cosmic double: a copy of you living in a copy of our world, but in another part of the multiverse. String theory, a notoriously theoretical explanation of reality, predicts an extremely large number of universes, perhaps 10 to the power of 500 or even more, each with slightly different physical parameters.
Then we have the quantum multiverse. Physicist Hugh Everett proposed this idea, predicted by his interpretation of “many worlds” in quantum physics. Everett’s theory is that quantum effects are causing the constant division of the Universe. This could mean that the decisions we make in this universe have implications for other versions of us living in parallel worlds.
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Source: www.descopera.ro
