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I had a though experience years ago on mushrooms, that our universe lives in a blackhole. Just think about it, when stars big enough implodes it creates a black hole in the fabric of space, where nothing can escape (not even light).
The beginning of our universe is somehow related to a condensed hot/light that explodes and creates the actual expansion we see right now... Kinda curious right?
Also there's somehow a limit how far we can see through our universe, that's also odd... It's impossible at the moment to see outside our own universe, because remember nothing can escape outside a blackhole, not even light !! Soo yeaah that's why I think we live in a multiverse.
Also on a final note, Rick&Morty said so ๐คทโโ๏ธ
You're kinda right, but not really. Based on a reductionist definition of a black hole, our universe is inside one.
However, that's strictly based on some of the characteristics of a black hole, and our universe.
However, if we're talking about black holes with more nuance, the answer becomes "no".
I'm not qualified to answer this, but I happen to know someone with a PhD in astrophysics, who has published multiple articles about black holes. We've talked about this before and long story short: we don't live inside a black hole.
The big bang theory disproves it. The existence of background cosmic radiation doesn't match the interior of a black hole; it's geometrically impossible.
Our universes ever growing horizon is out of limits, and we can't escape from it. That's not the sane thing as an event horizon though.
Just a correction, there isn't anything limiting how "far" we can see our into the universe except our limited technology. And even then we are very close. We're only limited by how old our universe is, as it takes light that long to travel to us from the edge of the expanding universe. The furthest we can possibly see would be about 300,000 years after the big bang, when light was finally able to travel unimpeded throughout the universe.
Thats way I said "for the moment", because I know we are limited by our technology. However, even If our technology evolves to a degree so large we can not comprehend, I'm pretty sure we wouldn't be able to "see" outside our own universe.
Sorry If my wording is a bit janky and not very scientific. Following your guts is also not very scientific in anyway, but that's how I feel when seeing all those strange coincidence that cross each other strangely enough !
But thanks for the clarification !
Edit: Even if we can't see outside our own bubblrle, we will still be able to travel from one universe to another :p
If we take the Schwartzchild Cosmology at face value we would only ever be able to "pierce the veil" through the boundaries of our cosmos with information/radiation through the Hawking Radiation, at least if the universe containing our local singularity has similar physics at play regarding singularities and the force of gravity.
That said, you could always go "down-well" into a singularity in our universe, but surviving the event horizon as more than particle soup spaghetti is quite a challenge.
This theory is called Schwarzschild Cosmology, and has actually gained some traction recently based on some new experiments.
https://journals.aps.org/prd/abstract/10.1103/PhysRevD.111.103537
As a youth this made intuitive sense to me as I first learned about different cosmological theorems. A black hole is essentially a pocket of mass on which a set of physical properties exist that are different from its containing universe, with the boundary between different physics being the event horizon and the "Big Bang" being the initial collapse of the singularity.