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Parallel Universes

The multiverse (or meta-universe) is the hypothetical set of infinite or finite possible universes (including the historical universe we consistently experience) that together comprise everything that exists and can exist: the entirety of space, time, matter, and energy as well as the physical laws and constants that describe them. The term was coined in 1895 by the American philosopher and psychologist William James. The various universes within the multiverse are sometimes called parallel universes.

The structure of the multiverse, the nature of each universe within it and the relationship between the various constituent universes, depend on the specific multiverse hypothesis considered. Multiple universes have been hypothesized in cosmology, physics, astronomy, religion, philosophy, transpersonal psychology and fiction, particularly in science fiction and fantasy. In these contexts, parallel universes are also called "alternative universes", "quantum universes", "interpenetrating dimensions", "parallel dimensions", "parallel worlds", "alternative realities", "alternative timelines", and "dimensional planes," among others. (from wikipedia.org)

Parallel Universes (BBC Horizon, 2002)
This film introduces multiverse (sometimes called parallel universes) theory. Scientists believe that there may be an infinite number of parallel universes, and we just happen to live in one of them.

The Universe: Parallel Universes (History Channel)
This film explains the possibility of parallel dimensions existing where Earth and everyone on it are duplicated many times over and how physicists search for evidence of higher dimensions and parallel universes.

The Fabric of the Cosmos - Universe or Multiverse?
This episode is about the multiverse; our universe may be just one of an infinite number of parallel universes.

What is Reality?
It may be that that we are part of a cosmic hologram, projected from the edge of the universe. Or that we exist in an infinity of parallel worlds.

Parallel Universes: The History of an Idea
Roundtable discussion with Eva Brann, Christa Davis Acampora, David Morgan, Paul Park, and David Weinberg.


Related Links
Multiverse - wikipedia
The multiverse (or meta-universe) is the hypothetical set of infinite or finite possible universes (including the historical universe we consistently experience) that together comprise everything that exists and can exist.
String Theory
Documentary films, talks and lectures explaining string theory - The Elegant Universe (a science documentary), Brian Greene's talk on string theory, Lectures on string theory from CERN.
Multiverse: One Universe or Many?
Through informed debate among architects of the inflationary theory and its prime competitors, this program explored our best attempts to understand where we came from.
The Universe
This is a History Channel documentary series exploring the wonders of the universe and the advanced physics concepts in the fields of cosmology, astronomy and astrophysics.
Through the Wormhole with Morgan Freeman
This is a Science Channel documentary series narrated by Morgan Freeman, seeking scientific answers to mysterious questions about the universe.