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Thank you for your help.

P

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In summary: The first link it brought me to was https://profmattstrassler.com/2014/03/21/did-the-universe-begin-with-a-singularity/. Did the universe begin with a singularity, which clearly does not remotely answer my question. As I began to type this I realize it has to be, in the definition of the math model breaks down and we don't have a clue of what's going on. So I stumbled upon this and perhaps this is what I was looking for with my first question, although I am not entirely sure: "So there were a number of attempts to get round the conclusion, that there was a singularity of infinite density in the

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Thank you for your help.

P

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You need to be more specific since "singularity" just means "the place where the math model breaks down and we don't know WHAT is going on". Which singularity do you have in mind? The singularity at the center of a black hole can't be "studied" in any empirical sense because it is causally removed from our universe and the Big Bang singularity is, as far as we are aware, unavailable for empirical study.Pbody101 said:

Thank you for your help.

P

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If we cannot study these, why do scientists work on them and how do they quantify their research. If you can lead me to links for more reading that would be awesome.

Thank you

P

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Since it is impossible to observe what actually happens in these circumstances empirically, the only available approach is to mathematically extend upon GR, on the assumption that in these extreme circumstances it is not applicable, something else is going on.

That doesn't mean GR is 'wrong' though, just that it is incomplete, it still describes spacetime perfectly for cases other than the extremes.

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For now take care

P

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So I stumbled upon this and perhaps this is what I was looking for with my first question, although I am not entirely sure: "So there were a number of attempts to get round the conclusion, that there was a singularity of infinite density in the past. "

"The conclusion of this lecture is that the universe has not existed forever. Rather, the universe, and time itself, had a beginning in the Big Bang, about 15 billion years ago. The beginning of real time, would have been a singularity, at which the laws of physics would have broken down."

http://www.hawking.org.uk/the-beginning-of-time.html

And I can see how we would have no idea what is going on, but I would still like to know more. So the research continues.

Thanks

P

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Googled: What is after the observable universe, a singularity? Because now I have come to understand singularities can be described as "the place where the math model breaks down and we don't know WHAT is going on" .

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What is expected to lie beyond the visible Universe is ...

nothing spectacular,

just more of the same kinds of galaxies in a similar distribution to those that are inside the observable sphere.

nothing spectacular,

just more of the same kinds of galaxies in a similar distribution to those that are inside the observable sphere.

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The math model does NOT break down after the observable universe. As rootone said, it's just more of the same.Pbody101 said:I just had an idea, and I don't know what else to do with my ideas other than google them so I did. I Googled: Is what is after the observable universe a singularity because this is now what I have come to understand singularities as "the place where the math model breaks down and we don't know WHAT is going on" .

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Since you keep referring to a singularity: are you trying to ask what happensPbody101 said:Googled: What is after the observable universe, a singularity? Because now I have come to understand singularities can be described as "the place where the math model breaks down and we don't know WHAT is going on" .

https://en.m.wikipedia.org/wiki/Heat_death_of_the_universe

https://en.m.wikipedia.org/wiki/Big_Crunch

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Hello Stoomart, no I wasn't trying to ask what happens when the universe ends. I am trying to do research of when the universe began, just like anything a study it seems like a bunch of rabbit holes. But I am glad you brought up the theory of what may happen when the universe ends, because after a few months of studying the beginning I will be looking at the ending.stoomart said:Since you keep referring to a singularity: are you trying to ask what happenswhenthe universe ends? If so, the theory before expansion was discovered to be accelerating was the big crunch, which ends in a singularity. The current theory is the universe will end in heat death, or thermodynamic equilibrium.

https://en.m.wikipedia.org/wiki/Heat_death_of_the_universe

https://en.m.wikipedia.org/wiki/Big_Crunch

Thank you for your reply

p

A space-time singularity is a point in space and time where the laws of physics break down and our current understanding of the universe falls apart. It is often described as a point of infinite density and zero volume.

Currently, we do not have a way to directly detect or observe space-time singularities. However, we can infer their existence through their effects on surrounding objects and events, such as extreme gravitational forces or the bending of light.

Scientists use various mathematical models, such as Einstein's theory of general relativity, to study space-time singularities. They also use advanced instruments, such as telescopes and satellites, to observe and gather data on these phenomena.

It is currently unknown if we will ever be able to fully understand space-time singularities. They challenge our current understanding of the laws of physics and may require a new, undiscovered theory to fully comprehend them.

Studying space-time singularities can lead to a deeper understanding of the universe and its origins. It may also help us develop new technologies and advance our knowledge of physics, which can have practical applications in fields like space exploration and energy production.

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