Why Do We Need a Multiverse Hypothesis?

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The title of this article is WHY DO WE NEED A MULTIVERSE HYPOTHESIS? with a picture of multiple glowing bubble universes.

In science fiction stories, characters step through a portal and emerge in a parallel or inverted world. In the minds of some physicists, multiple universes exist. According to the multiverse hypothesis, an almost infinite number of universes exist, each with radically different physical laws and properties. There is no evidence for this, and it is impossible to prove or falsify. So, why the multiverse hypothesis?

Agnostic scientists who theorize a multiverse do so because they cannot explain the apparent fine-tuning of the universe. Why are the particle masses and force strengths in our universe perfectly fine-tuned for us to be here? Slight changes in any of those factors would make it impossible for life to exist and would likely prevent a universe with stars and planets from forming.

Speculation about “bubble universes” in a frothing multiverse is pure science fiction at present, so what about another option? Some have proposed an idea based on quantum mechanics. But it is difficult to see how this could explain alternate universes, since quantum theory deals with the very small, not entire universes. So what is the reason for proposing multiple universes or quantum mechanics to explain how our universe could be fine-tuned?

There is a better explanation for the astonishingly fine-tuned parameters of our cosmos. However, it is one that many stubbornly refuse to accept, or even consider. What about the possibility that the universe was designed by an infinite Intelligence that exists outside of time and space? Is that not a more reasonable explanation for the precise design that makes our existence possible?

Quantum fluctuations cannot explain it. Even an infinite number of universes could not explain how we happen to be lucky enough to live in the one universe with the right combination of all the exact factors needed for life. Luck and chance are not scientific explanations. Even if there were an almost infinite number of universes, there would still need to be an explanation of how they originated. The design we observe in the cosmos can best be explained by a Designer. Skeptics choose the multiverse hypothesis to avoid the most obvious and logical explanation.

— Roland Earnst

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