The Big Crunch: Does it matter?

Question

Or, rather, does it make matter? I have a theory based off the Big Crunch theory.

Let's assume that the Big Crunch theory is accurate.

My theory proposes that the universe is simultaneously infinite in time.

Consider:

Space-time is the 4 dimensional fabric of the universe. When the Big Bang singularity went Boom, time began, or T = 0.

So, at T = 0, time begins, and starts counting, as entropy increases, order resulting in chaos. There is no "before" that, because there's no entropy, nor time, before the Big Bang. When the universe finishes expanding, and begins reversing because of gravity, entropy will decrease. Because entropy is the "arrow of time", time essentially runs backwards. Does this mean that we rewind through our lives, and the universe rewinds through its? No. Time runs backwards, but we do not move into the past. It's an understandably difficult concept to grasp.

So, when the Big Crunch finally crunches, T = 0 again. We now have no time. There has never been time, because time just reversed, and kind of picked itself up along the way, sort of like walking one way trailing a rope, then wrapping it up again on the way back. So, essentially, time never existed.

Then repeat the Big Bang.

Because time never existed, all of this Big Bangs and Big Crunches are happening simultaneously in time, though one after the other.

To make sense of that, try getting out of the frame of mind that time is linear. Consider time as an entirely new concept, where it can go all ways, though still functions as it does now (or, rather, as we perceive it now).

You know how you can have the same time in different places? It's 8:45 AM in my house, but it's also 8:45 AM in my neighbors house. Well, think of having different times in the same place. It's 8:45AM in my house, but it's also 8:46, 8:47, 8:48, 8:49, etc.

In this way, we can imagine that this universe, constantly expanding and contracting, is going through all of its expansions and contractions... simultaneously, one right after the other.

Because the universe is proceeding at the same time repeatedly, then there is no need for formation of matter and energy. It's always been there, and "always" has only been 15 billion years or so. It was there already, but hasn't been there forever. Thus, it needed no formation.

I hope this makes some sort of sense.

Now, I want to see if there's any fundamental flaws in it. Any scientific impossibilities that you can think of.

Is my hypothesis valid?

Answer 1

Excuse my ignorance but I feel that time exists as you rightly said as a measure. I don't think the expanding universe could change it, but I could be wrong. Quantum uncertainty. As negative gravitational energy cancels it's positive mass energy it shows how a star can be created at a point out of nothing. This also works for the universe which contains zero energy overall, so it's entire mass energy could have appeared at a single point. Along with an equal, negative-energy gravitational field. With inflation the big bang theory is more than a possibility.



Don't stop running theories through your mind, right or wrong it's healthy.

Answer 2

You have a serious misconception of the fourth dimension. The fourth dimension IS NOT time. The fourth dimension is a spatial dimension just like x,y,z in the 3d cartesian plane. The reason people call this dimension "time" is because our universe is a three dimensional space that expands into a fourth spatial dimension and, if we accept that it is closed, then this fourth dimension is a circle with a diameter expanding at a rate proportional to time. So, there is a proportionality constant between the diameter of the fourth dimension and time.



Entropy is a tricky property of energy as there is no measure of how much is too much; the only thing that is meaningful in entropy is the change of it, not it's actual value. The arrow of time is not really thought about in terms of entropy; it is really placed in terms of available energy consumed in the universe.



You hypothesis cannot be valid because it is based on many many fallacies, wrong assumptions, and misconceptions. I have been in the business of physics and science for almost 15 years and I have heard just about all possible speculations about the fate of the universe coming from people that just have no understanding of how physics & astronomy work and yet they feel like they know stuff just because they read "A Brief History of Time".



My advice is: stop with the speculation and start hitting the books.

Answer 3

darkish matter is "chilly" (the debris have a low time-honored velocity). Even relativistic textile can crumple in an excellent Crunch if there is sufficient of it. darkish matter provides to the final density, and subsequently will advance the possibility of a crunch.