The universal Big Crunch is inevitable....

[Braznor]

Lets take an enclosed two dimensional space like the surface of a sphere as an example. Over such a surface, any being will be able to travel in a straightline without limitations on its direction.

I.E. An ant over the surface of a ball will be able to travel in a straightline over and over again, always returning to the point it started from without ever changing its direction since there is no logical corner of a sphere. So while the scope of the surface of a sphere is limited, the directional movement of any entity upon its surface is unrestricted. Anything travelling in a straight line upon the surface of a sphere will return to its point of origin again.

If our own univese is such an enclosed 3D space, then there must be an event horizon where an object exiting our universe from one direction must reenter our universe from another direction. I.E. a galaxy in question which is accelerating due to Big Bang in a straight trajectory will be returning to its center point just like the ant does traveling straight upon the 2D surface of sphere. If our universe is such an enclosed 3D space, it doesn't matter how fast our universe is expanding, there will come a time when all the matter will return to the point of its origin at one point or another even if the entity in question is travelling in a straight line.

Expansion or contraction, the Big Crunch is inevitable. Also I'm drunk.

 

[Baked]

Don't worry, you won't live to see it happen. Go back to drinking.

 

[Ken g6]

Given your assumptions you are correct. But you assume that the universe is a closed universe, while cosmologists believe it is an open universe - edit: or at least a flat universe.

 

[OILFIELDTRASH]

Assuming said sphere isn't ever expanding.
I'm in the big freeze camp.

 

[lxskllr]

If you go away from the radius point you'll escape the universe, same is it works on the planet earth.

 

[silverpig]

Given your assumptions you are correct. But you assume that the universe is a closed universe, while cosmologists believe it is an open universe - edit: or at least a flat universe.

This.

You can have a closed (spherical) universe, a flat (sheet) universe, or an open (saddle / hyperbola) universe. As far as we can tell, the universe is flat to the best of our measurements. We can tell by calculating pi mathematically, and then by going out and measuring the radius and circumference of some very big circles.

If the universe is flat, then C/2r = pi
If the universe is closed, then C/2r < pi
If the universe is open, then C/2r > pi

 

[techs]

Wanted:
Schrodingers cat.
Dead or Alive

 

[moonbogg]

Pretty sure the smart people currently think it will spread out and freeze.

 

[Red Squirrel]

I thought this was going to be about a potential new KFC menu item.

 

[Printer Bandit]

hindus already know this:

http://www.hitxp.com/articles/veda/veda-age-universe-bigbang/

 

[Ruptga]

The big bang was an explosion OF space, not an explosion IN space. Galaxies and such are flying away from each other because space is expanding, not so much because the galaxies are moving away from each other.

In other words the sphere is getting bigger, making the ant take longer to go all the way around.
Go home Braznor, you're drunk.

 

[Puppies04]

This thread is now about pancakes, trust me you will thank me in the morning.

 

[Malak]

The big bang was an explosion OF space, not an explosion IN space. Galaxies and such are flying away from each other because space is expanding, not so much because the galaxies are moving away from each other.

In other words the sphere is getting bigger, making the ant take longer to go all the way around.
Go home Braznor, you're drunk.

How do you know space is expanding? How do you know anything is even moving? Maybe light is just bending or moving faster/slower and things just seem to be making movement. I think it's fruitless to try to define observations of things so far away, the evidence is contaminated by distance.

 

[Ruptga]

How do you know space is expanding? How do you know anything is even moving? Maybe light is just bending or moving faster/slower and things just seem to be making movement. I think it's fruitless to try to define observations of things so far away, the evidence is contaminated by distance.

Because science.

If you don't like science, feel free to strip naked and live in the fields. I'm sure Jesus will send you some crows to eat.

 

[Soundmanred]

This thread is now about pancakes, trust me you will thank me in the morning.

It's morning where I am.
So thanks!

 

[Paratus]

Wanted:
Schrodingers cat.
Dead AND Alive

Fixed that for you.

 

[Orsorum]

Your liver hates you. But I don't. Also, I'm enjoying cheap Argentinian wine. Cheers!

 

[colonelciller]

assuming closed universe and your chinese space ship (china will probably take the lead in space after oama killed the us program) hits a black hole....

once your atoms a crushed in the singularity (ie you are in the singularity) are you still inside the aforementioned closed universe?

 

[The Boston Dangler]

assuming closed universe and your chinese space ship (china will probably take the lead in space after oama killed the us program) hits a black hole....

once your atoms a crushed in the singularity (ie you are in the singularity) are you still inside the aforementioned closed universe?

how did oama do that?

 

[SlickSnake]

Expansion or contraction, the Big Crunch is inevitable. Also I'm drunk.

This is the only part that concerns me.

And since you're drunk, you wont even remember the expansion and contraction from the Big Crunch when you sober up, WIN-WIN for ME!


BTW, why do many artists who illustrate black holes still use a black planet shape instead of a concave circular event horizon with matter spinning into it? Very annoying and very WRONG.

 

[Malak]

Because science.

If you don't like science, feel free to strip naked and live in the fields. I'm sure Jesus will send you some crows to eat.

It's not science, it's guessing. And you don't know what you are talking about obviously.

 

[Ruptga]

It's not science, it's guessing. And you don't know what you are talking about obviously.

I am not going to write an entire essay when anyone with two brain cells to rub together can already find the entire explanation on their own. But, in there interest of advancing education, here is a good start.

Now, let's compare the wiki's opening paragraph with my own summary...

The metric expansion of space is the increase of the distance between two distant parts of the universe with time. It is an intrinsic expansion whereby the scale of space itself is changed. That is, a metric expansion is defined by an increase in distance between parts of the universe even without those parts "moving" anywhere. This is not the same as any usual concept of motion, or any kind of expansion of objects "outward" into other "preexisting" space, or any kind of explosion of matter which is commonly experienced on earth.

The big bang was an explosion OF space, not an explosion IN space. Galaxies and such are flying away from each other because space is expanding, not so much because the galaxies are moving away from each other.

Unfortunately for you this is not a religion thread; there are well-proven facts involved here, and they are not on your side.

 

[Malak]

Unfortunately for you this is not a religion thread; there are well-proven facts involved here, and they are not on your side.

There are no proven facts, that's why there are multiple theories on the subject. There are no proven facts because our ability to prove anything at that distance is impossible. We can't make anything but assumptions based on assumptions. All the theories make sense, but tell a different story, and that's as good as we can get at it. The theories change as the centuries go by because science comes up with new possibilities, but nothing is proven.

 

[Red Squirrel]

How do you know space is expanding? How do you know anything is even moving? Maybe light is just bending or moving faster/slower and things just seem to be making movement. I think it's fruitless to try to define observations of things so far away, the evidence is contaminated by distance.

Everybody on here knows everything about the universe and everything about everything in the universe. You cannot deny Atoters on this subject.


I still think The Universal Big Crunch sounds like an awesome name for a KFC chicken burger.

 

[Via]

Infinite thought and finite understanding.

Finite thought and infinite understanding.

Infinite thought and infinite understanding.

Finite thought and finite understanding.

Which is the most likely?