Multiverse Theory
Just like a bubble machine blowing countless floating bubbles into the air, it is the idea that countless other universes drift far beyond the one we live in.
Definition A physical hypothesis proposing that the universe visible through our telescopes is not the whole picture, but one of countless independent universes. While it sounds like pure science fiction, the concept naturally emerged from the mathematical calculations of modern cosmology and quantum physics.
Countless Bubbles in a Bubble Bath
When you dissolve a bath bomb in a tub, countless foam bubbles rise to the surface. Cosmologists explain that the birth of our universe may have unfolded in a very similar way.
In its earliest moments, space underwent cosmic inflation, expanding faster than the speed of light in the blink of an eye. However, this expansion did not halt everywhere at once. In some patches, it stopped and formed stars and galaxies, while in other regions, space kept inflating.
As a result, countless independent bubble universes formed across an endlessly expanding space. The universe we inhabit is merely a single bubble floating in this boundless sea. Inside other bubbles, fundamental constants like the strength of gravity or the speed of light could be completely different from ours.
Worlds Branching at Every Crossroads
Imagine deciding whether to take the bus or the subway on the morning of an important test, and you chose the bus. What if another version of you who took the subway still exists somewhere out there?
In quantum physics, microscopic particles can exist in multiple places simultaneously until they are observed. According to the Many-Worlds Interpretation, when a particle settles into one state, reality does not discard the alternativesโthe universe branches out to realize every single possibility.
This means the version of you on the bus and the version on the subway both continue living in separated universes. In this view, with every decision you make throughout life, new parallel realities continuously branch out.
To Be More Precise
The multiverse theory is not about opening a dimensional portal at will to step into another reality and meet an alternate self.
Other bubble universes and branched parallel worlds are physically and completely disconnected from ours. Even traveling forever at the speed of light, we could never reach another universe or transmit any signal to it. Because of this, scientists actively debate whether an idea qualifies as science if it cannot be directly observed or tested.
To be precise, the multiverse is not yet a proven law of physics. Instead, it is a compelling mathematical hypothesis constructed to logically explain cosmic origins and the bizarre properties of the quantum realm.
๐ค Common misconceptions
If the multiverse theory is true, advanced future technology will allow us to travel to other universes.
The other universes described in multiverse physics are completely separated in spacetime from ours, making it impossible to exchange signals or travel to them no matter how advanced technology becomes.
๐งบ Where you meet it
A scientific hypothesis proposing that countless independent universes may exist beyond the one we can observe.