The Multiverse Theory Explained

The multiverse theory, also known as parallel universe theory, proposes that our universe isn’t the only one in existence. In fact, there are multiple universes, sometimes called parallel universes or alternative universes, that exist in separate dimensions from our own reality and are governed by different laws of physics, resulting in the formation of different worlds. While the exact origin of this concept is unclear and contested, many scientists think that it’s supported by observational evidence and believe it could solve some of the biggest problems plaguing modern physics today.

What is the multiverse?

In an attempt to explain our Universe, scientists have devised an idea called the multiverse. The multiverse theory proposes that our Universe is just one of many in an infinite number of multiverses, each having different laws of physics and constants of nature. But how do we know whether this theory has any basis in reality? Is it possible to prove that the multiverse actually exists? This article explains what the multiverse is, how scientists discovered it, and where we go from here.

In physical cosmology and astronomy,the multiverse is a hypothetical group of multiple universes including the universe in which we live.hypothetical universes beyond were formed by splitting from other universes.The multiverse is not only composed of parallel universes that are similar to each other,but also includes empty space that exists between them.In physics and mathematics,alternative models for spacetime are investigated and require different spatial dimensions (for example, rotating spheres instead of a flat plane) or may include additional dimensions such as a compacted extra dimension called brane.

Are we living in a multiverse? Is there more than one universe? That’s what multiverse is all about. The multiverse is a hypothetical group of multiple universes that together comprise everything that exists: the entirety of space, time, matter, energy and phenomena. In other words — it includes our universe, but also theoretically infinite other universes outside of our own existence. It is still very much a theory (albeit an intriguing one) and scientists have yet to discover any concrete evidence to support its possibility.

The multiverse is an idea born from the many versions of cosmology, quantum mechanics and philosophy which claim actual physical existence of various potential configurations and histories of the known observable universe. Many of the best scientific models for the creation of our universe depend on the existence of multiverses.

This idea was not imposed upon society by imaginative science fiction writers; it arose from other premises, such as string theory and quantum mechanics. But if there are alternative universes that whirr undetected to the right of us — cosmologists call it the Multiverse — there are good reasons to consider it.

The term “multiverse” was coined in 1895 by American philosopher William James to indicate the confusing moral meaning of natural phenomena that have no other possible universes.

How do parallel universes exist?

Scientists have theorized that an infinite number of alternative universes may exist alongside our own. The idea is not entirely without scientific precedent. One famous theory goes back to Einstein’s general theory of relativity, which includes a theory of everything, called string theory. The broad strokes of string theory suggest that we live in a multiverse, where different universes are defined by what physics is like on their particular terms.

Scientists believe that there may be as many as 10500 universes. This theory is called The Multiverse. Each universe has slightly different laws of physics, and some do not have intelligent life at all. In these different universes, anything that can happen does happen — somewhere. Therefore, we should not be surprised if aliens exist elsewhere in our universe; it seems virtually impossible for life to arise on Earth given a few of our environmental conditions (e.g., our distance from other stars and high-energy radiation levels). Given how small our part of space is in relation to what else is out there — with so many potential Earths or habitable planets available — it would only make sense that alien life exists somewhere out there, too.

Is there any proof that we live in a multiverse?

An Oxford University team has found evidence of a collision between our universe and another bubble universe in its early stages. The study’s main author, Professor Roger Penrose, says that it is not an alternative to an expanding universe but rather an extension of our ordinary notion of space-time. In other words, it’s not a new theory as such but rather a prediction made by existing theories, which were corroborated using data from cosmic microwave background radiation. While that may sound like hot air (pun intended), there are strong reasons to believe Penrose might be right — notably because he was right about black holes before Stephen Hawking.

How does multiverse theory explain our universe

A multiverse is a hypothetical group of multiple universes (and their potential variations) that together comprise everything that exists: in essence, it is the cosmological theory of everything. A typical multiverse consists of pocket universes called alternate worlds, or parallel universes. These are based on theories such as quantum mechanics and string theory, which suggest that there are other worlds with different laws than our own universe. So far, there is no empirical evidence to support theories like quantum parallelism, although there have been proposals for experiments to test them-with inconclusive results so far.

What are some implications of the theory of multiverse

Imagine a scenario in which you’re driving down a street, with your car engine running. Then, suddenly, you step on a curb and feel your tire pop-you realize that it’s flat. The next thing you do is stop at a gas station to get it filled with air; when you look at your watch and note that it’s been 30 minutes since you last started up your car. However, if we extend our example from one universe to more than one-that is, if we consider many universes existing alongside each other-then there may be another version of yourself sitting in traffic right now; he or she was pulled over for speeding and got fined $100 dollars by a police officer.

Theoretical physics suggests that a multiverse is a hypothetical grouping of several universes. The ultimate multiverse model, known as the mathematical multiverse, fulfills these properties by postulating that all possible states correspond one-to-one with all the universes within the multiverse horizon.

This means that our universe is only a tiny universe in a much larger multiverse containing many infinite universes.

We live in an artificially bloated multiverse, and that means that the laws of physics and chemistry could vary from universe to universe — a concept that scientists still struggle to accept. Much of the multiverse theory is still hypothetical and conceivable, but scientific foundations are part of it.

The new hypothesis is based on a branch of theoretical physics known as string theory that concludes that the cosmos is finite, as co-author Thomas Hertog of the University of Leuven in Belgium told the AFP news agency, which consists of numerous universes. In his last contribution to cosmology, he and Hertog did not reject the multiverse concept, but proposed to scale it back.

Further limitations on the number of possible universes could arise by extending the analysis of the final boundary conditions of the multiverse. The main problem, according to Hossenfelder, is that multiverse theories are underdetermined and do not contain enough information to make such a calculation.

The theory of cosmic inflation supports the idea and states that thousands of universes from the same primordial vacuum have formed after the Big Bang and that the universe as we know it is observable to us. With singularity, it is possible that a new set of physical laws and different versions of those we know from different universes exist.

In cosmology, physics, astronomy, religion, philosophy, transpersonal psychology, music and all kinds of literature, especially science fiction, comics and fantasy there have been suspects of several universes. Max Tegmark’s taxonomy of the universe summarizes the various theories of multiple universes. The hypothetical group of these universes is the multiverse, also called parallel universes, other universes, alternative universes, or many worlds.

Parallel universes (also called alternative universes, quantum universes, reached dimensions, parallel universes, parallel dimensions, parallel worlds, parallel realities, quantum realities, alternative realities or alternative realities) are alternative timelines, alternative dimensions or dimensional levels in some contexts.



Originally published at



Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store