other universes
Alternate cosmic realms
Other universes are hypothetical realities beyond our own cosmos—the foundational concept of multiverse theory.
In physics, other universes might exist as parallel branches created by quantum events, or as separate bubble universes with different physical laws.
In fiction and philosophy, other universes provide settings where history diverged or reality operates differently: In some other universe, I made better choices.
The phrase often expresses wistful counterfactual thinking.
- astral planesNon-physical dimensions of existence
- beyond the veilIn the afterlife
- alternate timelinesBranching versions of history
- multiverseHypothetical set of universes
- mirror dimensionRealm accessed through reflections
infinite possibilities · alternate reality · quantum superposition · dystopian futures · fantasy realms · dreamscapes · underworlds · string theory · heavens · time loops · dark energy · idealism · cosmic balance · Narnia · rabbit hole · dualism · alien civilizations · celestial spheres
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