parallel universe

Coexisting separate dimension

A parallel universe is a hypothetical self-contained reality coexisting with our own, often imagined as branching from different outcomes of the same events.

In physics and cosmology, the concept appears in multiverse theories.

In everyday speech, it describes radical disconnection from shared reality: We must be living in parallel universes if you think that meeting went well.

fiction

science fiction

Speculative fiction with technological themes

mirror world · sliders · fringe · what if · alternate self · portal · dimensional travel · crossover · alternate timeline · Star Trek

cosmology

multiverse

Hypothetical set of universes

extra dimensions · higher dimensions · cosmic inflation · membrane · bulk · anthropic · fine-tuning · cosmological

physics

quantum mechanics

Physics at nanoscopic scales

branching · probability · measurement · observer · Schrodinger · quantum realm · Copenhagen · collapse · quantum state · entanglement

speculative

alternate history

Genre reimagining past outcomes

turning point · butterfly effect · sliding doors · road not taken

Categories
Opposites
reality status

parallel universereality

What actually exists

this world · physical reality · the here and now · objective reality · observable universe

figurative detachment

parallel universereality

What actually exists

down to earth · common ground · shared experience · everyday life · terra firma

singularity versus multiplicity

parallel universethe universe

Totality of space and matter

Family

universe, parallel, universal, parallels, paralleling, universality, paralleled, universalize, parallelogram

Familiarity
Top 100,000
Profile
Known to kids · Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G