What theories appose a multiverse?

AI Thread Summary
The concept of a multiverse, suggesting our universe is one of many formed through inflation, is gaining traction in scientific discussions. However, it faces opposition from several theories, including the idea that the multiverse lacks empirical testability and thus cannot be scientifically validated. Critics argue that the multiverse hypothesis may lead to unfalsifiable claims, undermining its scientific credibility. The debate continues on whether the multiverse is a widely accepted theory or a fringe idea within the scientific community. Overall, the discussion highlights the ongoing tension between innovative theories and traditional scientific rigor.
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Recently I saw a magazine which published an article on multiverse, where our universe is just one of the many possible universes resulted from inflation.
That article claimed that the notion of a multiverse is gaining momentum. I am wondering if the view is shared by the majority of the science community, or just a few? What are the theories that back this up and what are the theories that oppose it?
 
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