What lies within a black hole is a question that everyone wonders about.
Is it a gateway to another universe or does it just hide the space dump?
Scientists who have been pondering the question for a long time have come to the conclusion
that connects it to another question about how it all started in the first place.
They say that it's us who might be living inside a black hole.
A black hole is known as a cosmic vacuum cleaner, and it is the total opposite of life.
Strange, right?
Are we living within a black hole in another universe, and another version of ourselves
in our own?These are some rather perplexing questions, and today we are going to reveal
the truth behind them.
The biggest existential question one can ever ask is, "Where did all this come from?" or
"What was before that?"
If we just go back to the ‘before’, about 13.8 billion years ago, way before our existence,
everything in the entire universe was condensed into an infinitesimally small singularity,
a point of infinite denseness and heat.
The universe as we know it began with that single point that was infinitely hot and dense
and inflated and stretched at unimaginable speeds after the big bang.
Some might wonder where it all started, and according to some scientists, it all started
in the mysterious black hole.
Black holes are dense points in space that produce deep gravity wells.
Even light cannot escape the tremendous draw of a black hole's gravity beyond a specific
location.
Anything that gets too close will be stretched and compressed as a result of the spaghettification
process.
The event horizon of a black hole is the border that surrounds its mouth.
This is the point beyond which no light can escape.
The singularity, or one point in space-time, is the inner area of a black hole, where the
object's mass is concentrated.
A particle cannot escape the event horizon once it has crossed the event horizon.
Now the black holes share some similarities with the universe.
Just like black holes, the universe too has a singularity, and that is the big bang.
Simply put, it is that infinitesimally hot and dense point where it all began.
After the big bang, space expanded, first at unimaginable speeds, and then at a more
measurable rate, and is still expanding today.
This expansion gave us the event horizon of the universe.
Now there might be a question in your mind.
This universe is immensely large.
How big would be the event horizon of that black hole we are in?
Unlike the question, the answer is surprisingly simple.
The event horizon is very close to the actual horizon size of the observable universe.
Here is another view.
Let’s take the singular point, where it all began, as the seed of this universe.
This seed was believed to be almost unbelievably tiny, potentially trillions of times smaller
than any particle humans had ever seen.
Despite this, it is a particle capable of igniting the development of all other particles,
as well as galaxies, solar systems, planets, and even us.
But, from where did such a seed with this intensity come?
Nikodem Poplawski of the University of New Haven presented the idea that the seed of
our universe was created in the ultimate kiln, arguably the most severe setting in all of
nature, inside of a black hole.
According to Dr. Poplawski, matter inside a black hole reaches a point where it can
no longer be crushed.
This "seed" may be exceedingly small, weighing a billion suns, yet it is real, unlike a singularity.
He is of the view that the compacting process comes to a halt when black holes spin.
They spin at a breakneck pace, possibly approaching the speed of light.
And the compacted seed gains a lot of tension as a result of this spin.
It's twisted and compressed, in addition to being small and heavy.
This compression of seed is just like a spring that unsprings with a bang.
There is also another idea presented by Stephen Hawking.
But before we go any further, it's crucial to note that many theoretical physicists have
come to believe that our universe isn't the only one.
Instead, we could be a part of the multiverse, a vast collection of distinct worlds.
According to Hawking, every time a black hole is created in the universe, it could give
rise to a "baby universe".
That universe will only be accessible to an observer that crosses inside that black hole’s
event horizon.
This idea is fascinating.
It could be possible that we are living inside a parent universe’s black hole, and in the
black hole of our universe, or the baby universe, there lies another universe, the baby of the
baby universe.
This means that every time a black hole is created, a new universe is born.
A black hole's existence is defined by the presence of an event horizon, a boundary that
tells a radically different story for an object outside of it than one inside.Any object outside
a black hole's event horizon will feel its gravitational effects since space will be
warped by the black hole's presence, but it will still be able to escape.
It won't definitely go into the black hole if it moves fast enough or accelerates swiftly
enough in the right direction, but it may be able to escape the black hole's gravitational
pull.
However, once an object exceeds the event horizon, it is doomed to be swallowed up by
the black hole's central singularity.
Because the fabric of spacetime inside a black hole is strongly curved, an infalling object
will approach the singularity within seconds of crossing the event horizon, increasing
the mass of the black hole.
The black hole appears to originate, gather mass, and grow over time from outside the
event horizon.
However, here is one thing to focus on.
Three-dimensional black holes in our universe have two-dimensional event horizons.
That means our universe has to emerge from a four-dimensional black hole in a four-dimensional
universe to be an event horizon.
The laws of physics inhibit us from knowing what happens in a blackhole’s singularity,
but we can calculate what happens on the boundary of an event horizon.
The event horizon encodes information as matter falls into the black hole.
The black hole and the event horizon develop in sync until the surface area is exactly
the proper size to hold all of the information for all of the matter that has ever entered
the black hole since its birth.
All of that data may be used to explain everything in our universe.
This possibility was first proposed by researchers at the Perimeter Institute and the University
of Waterloo in 2014.
According to the researchers, there is one problem with the big bang.
They say the problem "is that the big bang hypothesis has our relatively
comprehensible, uniform, and predictable universe arising from the physics-destroying insanity
of a singularity."
It seems unlikely.
" Now, if we live in a black hole, our universe
must conform to the Schwarzschild equation.
It is known that there are approximately 1011 galaxies in the universe, and there are about
1012 stars in each galaxy, and the stars are on average 21030 kg.
In star systems, most of the mass comes from the stars, as in the solar system.
The mass of the universe is 21053 kg, approximately.
If we calculate the Schwarzschild radius by the mass of
the universe, we can find out what the radius of a black hole in the universe should be.
The true radius of the observable universe is 46.5 billion light-years, whereas the result
we found is 36 billion light-years.
Since we don't know what the other 95% of the universe is made up of, their names begin
with "dark."
dark matter-energy, black hole.
We can presumably produce more accurate forecasts if we can just determine the unknown mass.
The question is still there.
Are we really living inside a black hole?
We can get to a possible answer through Hawking radiation.
According to Stephen Hawking, the line between a black hole and a white hole blurs if a black
hole leaks mass by hawking radiation in perfect equilibrium with the radiation it absorbs,
for instance, from the cosmic microwave background.
It's possible that they're the same thing.
He said, "If you lump all of this together, a very specific construction
for white holes to make them look like our universe from within, and Hawking's argument
that equates white holes with black holes, then there's a roundabout way to argue we
might not be in a black hole."
So, we might not be in a black hole, but that is not an absolute answer.
To prove it further, we really need some more research.
Maybe we are living inside a chain of black holes, or maybe not.
What do you think about this?
Let us know in the comments section below.
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