There are plenty of reasons to believe universes could be stacked, nested, or even connected in ways we can’t fully wrap our heads around yet.
Patterns in Nature Tell a Story
Look at the world around you. Branching trees, blood vessels, river networks... they all follow similar structures. Nature repeats itself at different scales, and there’s no reason to think the universe would be any different.
If galaxies, star systems, and atoms all share familiar patterns, then maybe our universe is just a small part of something even bigger, and inside it, there could be countless others.
Black Holes Might Be Doing Something Unbelievable
For a long time, people thought black holes were just places where things disappeared forever. But some theories suggest they could actually be doorways to new universes.
If a black hole crushes everything inside to an extreme point, it could create an entirely separate reality on the other side, one we’d never be able to access from here. And if that’s true, our own universe might have started this way, meaning we could be inside something much larger without even realizing it.
Hidden Dimensions Could Be a Clue
Some scientists think we might be living inside a bubble. One of many floating in a larger space. We can’t step outside our own universe to check, but if these layers of reality exist, then different universes might not just sit side by side. They could be within each other, like pages in a book that can’t see each other but are still part of the same whole.
Consciousness Might Play a Role
Some research even suggests that tiny particles don’t settle into a single state until they’re observed. If the act of looking at something changes how it behaves, then who’s to say reality itself isn’t shaped by perception?
Maybe every mind contributes to building its own reality in some way. If that’s the case, then universes might not only be physical places but also something tied to awareness itself.
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There’s a lot to suggest that reality is way more complex than it seems. We could be part of something enormous, and at the same time, entire worlds might exist inside us.
Now coming back to reality, all of this is highly speculative and has little to no supporting evidence nor could it even be possible to obtain any evidence for some of these theories.
We already have a pretty solid understanding of these things and adding unnecessary complexity is never the answer.
