The Multiverse Hypothesis: Are We in One of Many Universes?

The multiverse hypothesis suggests our universe may be just one among countless others.
Each universe could have different physical laws, constants, or even dimensions.
The idea arises naturally from theories like cosmic inflation and string theory.
Some versions imagine infinite universes branching at every quantum decision.
Others propose “bubble universes” expanding separately within a larger cosmic space.
The multiverse could explain why our universe’s laws seem fine-tuned for life.
Direct evidence is elusive—by definition, other universes may be unobservable.
Some scientists search for hints, like cosmic microwave background anomalies.
The hypothesis blurs the line between physics and philosophy.
Whether real or not, the multiverse challenges our sense of uniqueness in the cosmos.