The Universe

[Iceman]

Just curious on how everyone thinks this "place" was created. The Big Bang or an alternitive

[Amnesiac]

This:

I'm going to take a moment here to explain how the big bang theory works. If anyone comes here and says "HURR WHAT STARTED THE BIG BANG" after I post this, you're an idiot.

The Big Bang was not the "explosion" that started the universe. It was the point where all the matter that makes up the universe was condensed into one infinitely small point with infinite density and temperature. Since we know the Universe is expanding (galaxies are moving away from each other), the Universe had to be infinitely dense and hot at some point in history — this is known as a singularity, the point where most (if not all) scientific theories "break down" (see below). The Universe did not suddenly explode into being, the time when it was infinitely dense and hot is what scientists label the "Big Bang". After that period, the Universe expanded rapidly due to the sheer amount of energy inside it — as it expanded, the rate of expansion slowed as the matter within the Universe organized itself.

As explained in Stephen Hawking's A Brief History of Time, it is impossible to explain what happened before the Big Bang, since modern scientific theory is only able to explain what happened after the Big Bang singularity. Therefore, time started when the Big Bang happened, leaving everything else before the Big Bang irrelevant. A direct quote:

Hubble’s observations suggested that there was a time, called the big bang, when the universe was infinitesimally small and infinitely dense. Under such conditions all the laws of science, and therefore all ability to predict the future, would break down. If there were events earlier than this time, then they could not affect what happens at the present time. Their existence can be ignored because it would have no observational consequences.

The future of the universe depends greatly on what shape the universe is, and how fast it is expanding.

Image (http://hoku.as.utexas.edu/~gebhardt/plots/open_closed.gif)

In an "open" universe, the Universe is expanding at a rate fast enough to avoid re-collapsing into a singularity again due to the forces of gravity (which is what would happen in a "closed" universe). A "flat" universe is similar; it is expanding slowly, fast enough to avoid re-collapsing but at a slower rate as time goes on. As can be seen, all three of these possible ways the Universe is growing started at the Big Bang singularity and expanded rapidly before slowing to its present rate (whatever that might be).

That's my brief summary of the Big Bang theory. It doesn't cover nearly everything, but it gives you all the basic info about what the theory really says, not "HURR BIG EXPLOSION". I don't want to see any bullshit responses to this; this is entirely based on solid sources which can be found here (http://en.wikipedia.org/wiki/Big_Bang) and here (http://www.fisica.net/relatividade/stephen_hawking_a_brief_history_of_time.pdf).

[Peace God]

The big bang isn't really how the universe was "created" but how it expanded and formed shortly after the beginning. And yes, I do believe that Big Bang is the most likely theory because not only were scientists able to figure out that everything around our solar system is moving away from us... the beginning of our universe can be traced back to a singularity about 13.7 billion years ago.


The future of the universe depends greatly on what shape the universe is, and how fast it is expanding.

Image (http://hoku.as.utexas.edu/~gebhardt/plots/open_closed.gif)

In an "open" universe, the Universe is expanding at a rate fast enough to avoid re-collapsing into a singularity again due to the forces of gravity (which is what would happen in a "closed" universe). A "flat" universe is similar; it is expanding slowly, fast enough to avoid re-collapsing but at a slower rate as time goes on. As can be seen, all three of these possible ways the Universe is growing started at the Big Bang singularity and expanded rapidly before slowing to its present rate (whatever that might be).

I think that the fate of the universe is going to pretty much be this...
...Its been discovered recently that the universe is actually flat...because of this the fate of the universe is most likely expansion forever.

EDIT: Oh yeah, and heres some sources for my view on the shape(flat) and fate(expanding forever) of the universe.

The WMAP spacecraft can measure the basic parameters of the Big Bang theory including the geometry of the universe. If the universe were open, the brightest microwave background fluctuations (or "spots") would be about half a degree across. If the universe were flat, the spots would be about 1 degree across. While if the universe were closed, the brightest spots would be about 1.5 degrees across.
Recent measurements (c. 2001) by a number of ground-based and balloon-based experiments, including MAT/TOCO, Boomerang, Maxima, and DASI, have shown that the brightest spots are about 1 degree across. Thus the universe was known to be flat to within about 15% accuracy prior to the WMAP results. WMAP has confirmed this result with very high accuracy and precision. We now know that the universe is flat with only a 2% margin of error.

WMAP- Shape of the Universe (http://map.gsfc.nasa.gov/universe/uni_shape.html)

Absent dark energy, a flat universe expands forever but at a continually decelerating rate, with expansion asymptotically approaching a fixed rate. With dark energy, the expansion rate of the universe initially slows down, due to the effect of gravity, but eventually increases. ~ Wiki (http://en.wikipedia.org/wiki/Ultimate_fate_of_the_universe#Flat_universe)

[Azunite]

When God tried to create Chuck Norris, one of his spells backfired and created the universe. Spells to create Chuck Norris were extremely powerful therefore one backfire easily formed the universe.

[Ali_Cat]

When God tried to create Chuck Norris, one of his spells backfired and created the universe. Spells to create Chuck Norris were extremely powerful therefore one backfire easily formed the universe.

This exactly.

[Amnesiac]

The big bang isn't really how the universe was "created" but how it expanded and formed shortly after the beginning.

Well, the Big Bang marks the start of time. So, really, it's pretty much the start of the universe as we know it — as I explained, anything before the Big Bang is irrelevant.

[Azunite]

Well, the Big Bang marks the start of time. So, really, it's pretty much the start of the universe as we know it — as I explained, anything before the Big Bang is irrelevant.

But what triggered the Big Bang ?! o_O

[PJay]

God getting kicked out of a parallel reality for inventing quantum physics and putting himself out of a job.

[Peace God]

Well, the Big Bang marks the start of time. So, really, it's pretty much the start of the universe as we know it — as I explained, anything before the Big Bang is irrelevant.
I was talking about the theory itself.
But what triggered the Big Bang ?! o_O
> Implying the Big Bang was triggered.

[Azunite]

I was talking about the theory itself.

> Implying the Big Bang was triggered.


"Implying"?
What do you mean?
So nothing triggered Big Bang?
How did BB happen then?

[Minimoose]

I seem to have a distant memory of someone telling me that the most likely situation to 'trigger' the big bang was something to do with the transfer of energy from a huge explosion somewhere else...can't quite remember the details :/ but meh, the future is what is important tbh, because our theory may change within the next 1000 years or so...you never know! :)


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[Amnesiac]

I was talking about the theory itself.

> Implying the Big Bang was triggered.


I see.

"Implying"?
What do you mean?
So nothing triggered Big Bang?
How did BB happen then?

As my summarization of the theory explains, the Big Bang was not "triggered" nor was it an "explosion" of any kind.

[Peace God]

"Implying"?
What do you mean?
You are implying that something "triggered" the Big Bang (whether consciously or unconsciously).
So nothing triggered Big Bang?
I think that this is very likely.

[Donkey]

Never will believe the big bang theory. Don't have much time to make this post, so key points;



If the big bang marks the beginning of time, it must have happened in time thus it cannot have been the beginning of time.
If the big bang just happened (lololol) what happened before it? In fact, since everyone seems to hate that question, what was there that caused all of the matter to condense? Surely this must have happened in time?
If there was matter before the big bang, what caused space, and what caused that matter to exist? (the key question)
Saying "lol, wot happened before the big bang is irrelevant" just defeats the point of mentioning the whole thing for me anyway.

We are infinite. We are nothing. We were not created. Time and space existed forever. Time is a loop with no end. Space is infinite.

Hmmm.... jumbled Jon views

[ITSGUCCITIME]

It was all God work

[Perseus]

We are infinite. We are nothing. We were not created. Time and space existed forever. Time is a loop with no end. Space is infinite.

Hmmm.... jumbled Jon views
Then why are we expanding? For us to be expanding, there would have to have been a beginning place.
It was all God work
Cool story, bro.

[Daniel_]

Chuck Norris roundhouse kicked nothing in the face and told it to get a job. And thus, the universe was created.

[Amnesiac]

This thread disappoints me.

My views on the Big Bang theory stand, y'all.

[Commander Thor]

The thing everyone needs to understand is, the Big Bang marks the BEGINING of time. If you follow a timeline, and go backwards, the Big Bang is as far back as you can go. That's it. Whatever was 'before' it is irrelevant.

Another thing you guys need to understand, is that the CURRENT laws of physics, don't apply, at all, to the time of the Big Bang. There were NO laws in the first few microseconds of the big bang. So you know that famous saying: "Energy cannot be created or destroyed". Guess what, it doesn't apply, that law simply didn't exist.
In my personal opinion, nothing at all had to exist before the Big Bang. When you throw the laws of physics out of the window, something can /surely/ be created from nothing.

[Iceman]

Well nothing can be created from nothing, so something had to be there before..

[Magus]

Then why are we expanding?
We are experiencing Blue-Shift (http://en.wikipedia.org/wiki/Blue_shift) as well.
My views on the Big Bang theory stand, y'all.
Big bang is a bad theory.

I will go with what Michio says.
F-yEu-b_YD0

And don't give me that "they r bascly teh same thing".

[Daniel_]

We are experiencing Blue-Shift (http://en.wikipedia.org/wiki/Blue_shift) as well.

Big bang is a bad theory.

I will go with what Michio says.
F-yEu-b_YD0

And don't give me that "they r bascly teh same thing".

An error occurred, please try again later.

[Magus]

An error occurred, please try again later.
1)Update your flash player.
2)Click on the youtube video to go to youtube and watch the video there.
3)Stp! trllng me!1

[Daniel_]

1)Update your flash player.
2)Click on the youtube video to go to youtube and watch the video there.
3)Stp! trllng me!1

Lol I wasn't trolling, and I got it to work. Parallel universes are quite interesting. I wonder if there is a more successful, more attractive, better-at-life version of me out there. I'd love to take his place, he can have my shit hole.

[Syvelocin]

I personally don't dwell on these things. I've spent long days contemplating topics like the start of time and the concept of oblivion. Just made me more confused.

Of course, not being of a creationist religion, I think the Big Bang is the most likely of theories. However, I'm the type of person who questions things to their respective point, but past that I take life and existence as it is. I don't litter it with deities and theories. Whether there was a definite beginning or it's always been, that doesn't change a thing in the present, does it? Why question and argue more than is necessary for the hungry mind? Existence is existence. Take it as it comes.

Not at all in an ignorant way. Just accepting what you're presented with is all, without stories and speculation taking up everything.

You can spend your whole life churning it in your head and arguing, worshipping a God and following the rules. Or you can take advantage of "vital existence instead of spiritual pipe dreams."

Sorry :P