Singularity (stars, Sun, black hole, theory)

[The Anointed]

From where, and from what was created, the singularity that is supposed to have been the origin of this Three Dimensional universe?

[Milky Way Resident]

Originally Posted by The Anointed

From where, and from what was created, the singularity that is supposed to have been the origin of this Three Dimensional universe?

I’ll attempt to answer a few things, though I’m not a cosmologist and some of these may be wrong.

That’s a very difficult question to answer, unfortunately. We can only see as far as the Cosmic Microwave Background (CMB), which is about 380 000 years after the Big Bang. A singularity is a mathematical construct that implies that a concentration of infinite density located at a dimensionless point, but that’s just another way of saying that known physics breaks down.

Think of a black hole and how it’s often described as a singularity (sort of a parallel analogy), but in truth we don’t know how matter is distributed inside of the Event Horizon and can only make predictions.

If the theory of eternal inflation is true (an offshoot of cosmic inflation), then we live in a bubble universe surrounded by eternally inflating space occupied by other bubbles. In that scenario, our Big Bang was just a localised event and there are other big bangs happening all the time. This leads to one of several possible multiverse theories, though it might be impossible to actually prove.

[The Anointed]

Originally Posted by Milky Way Resident

I’ll attempt to answer a few things, though I’m not a cosmologist and some of these may be wrong.

That’s a very difficult question to answer, unfortunately. We can only see as far as the Cosmic Microwave Background (CMB), which is about 380 000 years after the Big Bang. A singularity is a mathematical construct that implies that a concentration of infinite density located at a dimensionless point, but that’s just another way of saying that known physics breaks down.

Think of a black hole and how it’s often described as a singularity (sort of a parallel analogy), but in truth we don’t know how matter is distributed inside of the Event Horizon and can only make predictions.

If the theory of eternal inflation is true (an offshoot of cosmic inflation), then we live in a bubble universe surrounded by eternally inflating space occupied by other bubbles. In that scenario, our Big Bang was just a localised event and there are other big bangs happening all the time. This leads to one of several possible multiverse theories, though it might be impossible to actually prove.

A singularity is a region of space-time in which matter is crushed so closely together that the gravitational laws explained by general relativity break down. In a singularity, the volume of space is zero and its density is infinite. Scientists believe such a singularity exists at the core of a black hole, which occurs when a super-massive sun reaches the end of its life and implodes. General relativity also demands such a singularity must exist at the beginning of an expanding universe.

Did the singularity from which this Three Dimensional universe is said to have been created, exist at the core of a Black Hole, and did that Black Hole exit within our Three Dimensional Universe, or in a different universe that existed within a different dimension?

There are as many, if not more scientific theories as to the origin of our universe, as there are differing religious bodies, such as Christianity, Hindu, Abrahamic, Muslim, etc.

Perhaps the following, should be looked at more closely, which is a theory put forward by Niayesh Afshordi, an astrophysicist with Perimeter Institute for Theoretical Physics in Canada, which could explain the singularity within a Super massive Black Hole, from which singularity our ‘Three Dimensional’ Universe was born.

Niayesh Afshordi, proposes that our three-dimensional universe floats as a membrane in a “bulk universe” that has four dimensions and that the “Bulk Universe” has four dimensional stars, which go through the same life cycles as our three-dimensional stars.

The most massive ones explode as supernovae, and their central core collapses into a black hole, (As a Singularity) like in our universe---only in four-dimension. The four-dimensional black hole has its own four dimensional “Event Horizon,” the boundary between the inside and the outside of a black hole.

In a three-dimensional universe, the event horizon appears to be two dimensional. In a four-dimensional universe, it appears to be three dimensional. The four-dimensional black hole, then blows apart, (THE BIG BANG) with the leftover material forming a three-dimensional membrane surrounding a ‘Three Dimensional’ event horizon, which expands---and is essentially our universe.

So, according to the theory proposed by Niayesh Afshordi, our universe is the vomited-up guts of a Super massive fourth dimensional black hole. The expansion of the event horizon explains our universe's expansion; the fact that its creation stems from another 4D universe explains the weird temperature uniformity.

[ecochris]

I thought according to Hawking black holes eventually "evaporated" so had no effect elswhere

[Boone1791]

Ten or twenty billion years ago, something happened -- the Big Bang, the event that began our universe. Why it happened is the greatest mystery we know. That it happened is reasonably clear. - Carl Sagan

"The laws of nature must have existed before even time began in order for the beginning to happen. We say this, we believe it, but can we prove it? No." [Leon Lederman, The God Particle]

"We mentioned that the FLRW [standard] cosmology begins with a singularity. This is a much more serious breakdown than a flat tire or a cracked engine block. It is, in fact, a physical impossibility -- a region where the laws of physics break down altogether and even spacetime comes to an end." - Tony Rothman

"When the temperature dropped far below one billion degrees [three minutes after the big bang] this 'primordial nucleosynthesis' stopped and, according to the standard model, we should be left with roughly 25% helium by mass and 2 x 10-5 parts deuterium. It may seem like a miracle that astronomers in fact do measure about 25% helium in the real universe, but it is a miracle squared that they also measure something like 2 x 10-5 parts deuterium." - Tony Rothman [Note: 10-5 means 10 to the minus 5 power here.]

"Making a model of the universe is like trying to pitch a tent on a moonless night in a howling Arctic wind. The tent is theory. The wind is experiment. When one gets to the precipice, where the secure lands of the known have been left behind and the dark canyons of the unknown fill one's field of view, it becomes very difficult to guess just where to set the tent pegs and to predict which ones will hold once the wind comes up." -- Timothy Ferris