Non-ballistic big bang and expansion not from a center

In summary: It's like a rubber band. The farther it stretches, the more it wants to stretch.In summary, these exercises help us to imaginatively explore the boundaries of our world, and to see how our understanding of it can evolve over time.
  • #36
G.E.Hunter,

You have clearly misunderstood the baloon analogy and it has been explained many times on this forum, so do a forum search if you want to understand it.

There is no edge to the universe and there is no center.

your posts are, from the point of view of modern science, utter nonsense and you would do well to learn some basics before making such statements.
 
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  • #37
phinds said:
G.E.Hunter,

You have clearly misunderstood the baloon analogy and it has been explained many times on this forum, so do a forum search if you want to understand it.

There is no edge to the universe and there is no center.

your posts are, from the point of view of modern science, utter nonsense and you would do well to learn some basics before making such statements.

Thank you. Good to hear you know everything. I'll keep that in mind.
 
  • #38
Hey G.E.Hunter, instead of taking phind's words as gospel truth, why not read the FAQ and see for yourself what the current model of the universe is?

https://www.physicsforums.com/forumdisplay.php?f=206 [Broken]

It sure helps me out a lot.
 
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  • #39
Our universe is contained within an infinite area.
 
  • #40
pmghss said:
Our universe is contained within an infinite area.

You really should not make an unspportable claim of personal opinion as though it is a fact. If you have evidence that what you say it true, I'd be very interested in seeing it and in fact, I suspect that the Nobel Prize Committee would too.
 
  • #41
chaszz said:
Thanks. It's an interesting explanation. And another example that at both very small and very large scales, common sense cannot wrap itself around or sometimes cannot even approach what is being discussed. At this rate within fifty years no one will understand physics on any rational level at all except physicists. Possibly we are there already. As someone without training or math aptitude, I have lived for many years via popularizations. Many times now I can't even understand the popularizations anymore.

I believed that «common sense» do not play any role in physics since Galileo epoch or so... but was substituted by scientific method.

About popularizations of science, I am sorry to say this but almost all of them are wrong.
 
  • #42
chaszz said:
In a recent thread, it is stated that the universe did not start its expansion in a ballistic type event, and it did not expand from a center.

The BB can’t be ballistic. The Universe can’t expand from a single point, a BB singularity, and be homogenous and isotropic.
 
  • #43
G. E. Hunter said:
A balloon squished to a single point, suddenly expands in all directions. The surface of the balloon is the outer edges of the universe- if there is such a thing, and the internal contents is the universe. So we can find a center of the universe if we can find it's finite edges, then calculate the diameter assuming it's a circular expanse, then use half that to approximate the center of the universe. But the point of the 'big bang' was the outer edges of the universe all at one center. That should be easy to understand.
Afaik, the 'big bang' refers to a point of no particular size/extent but of calculable temporal separation from the current, observable, universal epoch. There appears to be a discernible very large scale structure wrt the currently visible universe. And I wouldn't call that structure itself either homogeneous or isotropic. But it does seem to be a consequence of particular fundamental wave dynamics, IMHO.
 
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  • #44
Imax said:
The BB can’t be ballistic. The Universe can’t expand from a single point, a BB singularity, and be homogenous and isotropic.
First, there's no particular reason to assume that our universe has expanded from 'a single point'. Second, our universe isn't necessarily altogether homogeneous and isotropic. There's what we can see and map. Which suggests fundamental dynamics. But there's no way of knowing if our universe is or isn't part of some preexisting, perhaps infinite, medium.

To elaborate, lawful wave dynamical evolution in an isotropic medium suggests observational isotropy, which is more or less what's observed -- wrt cmb anyway.

And insofar as this is a characteristic of all explosive/ballistic events, the origin of our universe could be ballistic/explosive. We just have no way of knowing, afaik.
 
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  • #45
juanrga said:
I believed that «common sense» do not play any role in physics since Galileo epoch or so... but was substituted by scientific method.
I think you might be quite wrong about that. Study the development of the quantum theory. There's more 'common sense' classical reasoning involved in it than you might suspect. Anyway, ordinary categorical deductive logic/inference, as well as inductive inference are both part of the scientific method.
 
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  • #46
ThomasT said:
I think you might be quite wrong about that. Study the development of the quantum theory. There's more 'common sense' classical reasoning involved in it than you might suspect. Anyway, ordinary categorical deductive logic/inference, as well as inductive inference are both part of the scientific method.

It is just as I said. Quantum mechanics was developed following the scientific method, not using an ill-defined «common sense». The bibliography about the impact of quantum mechanics on people (and their «common sense») is very vast.
 
  • #47
phinds said:
You really should not make an unspportable claim of personal opinion as though it is a fact. If you have evidence that what you say it true, I'd be very interested in seeing it and in fact, I suspect that the Nobel Prize Committee would too.

It is simple. Either this universe is itself the infinite area, or it may be just a glob of matter contained in an infinite area.

I use my own quote. Outside does not stop.
 
  • #48
pmghss said:
It is simple. Either this universe is itself the infinite area, or it may be just a glob of matter contained in an infinite area.

I use my own quote. Outside does not stop.

You really should read some basic cosmology. As for posting this stuff, you should stop while you are behind (that is, before you get further behind).
 
  • #49
pmghss said:
Either this universe is itself the infinite area, or it may be just a glob of matter contained in an infinite area.
From what knowledgeable posters here have said, and from what I've read, either of these do seem to be possible, as there doesn't currently seem to be any definitive reason(ing) for favoring one scenario over the other.

However, I take it that you favor the view that our universe is finite, which I do also. And this view seems to me to suggest that our universe is part of a preexisting medium ... which might also be a finite 'disturbance' in a still larger preexisting medium, or itself infinite, and so on.

The hook for me is the apparent expansion of our universe. That is, why would there be apparent expansion in an infinite universe? Why would observable matter be getting farther apart on very large scales in an infinite universe?

Note: Following my viewing of some computer simulations which extend what's known of the very large scale structure of our universe, I might have to revise my opinion, as stated in post #43, that the very large scale structure (that is, the stellar distribution) of our universe doesn't seem to be particularly isotropic or homogeneous. I was basing this on my limited knowledge of some apparently anomalous and vast 'wall' structures, and the irregularly organized (to me at the time anyway) filament-like structures of galaxies and galactic groups revealed by surveys. But maybe I just wasn't thinking big enough. The computer simulation suggests a fairly even distribution of the filament-like structure wrt its very very large scale view of our universe. Sort of like the cross section of a sponge. But then I got to thinking that maybe the simulation isn't 'thinking' big enough. If the simulation is based on some 'fractalization' assumptions (is it? ... I have no idea), then is it possible that a still much larger view will reveal the wall structure anomalies that are evident from observations ... and so on?

Wrt this, one thing that came to mind was that the filament-like structure suggests regions of constructive and destructive wave interference. Is this an acceptable/possible inference from the data?
 
  • #50
phinds said:
You really should read some basic cosmology. As for posting this stuff, you should stop while you are behind (that is, before you get further behind).

I have studied basic cosmology and the standard model. That's why I choose to use common sense instead. :rofl:

ThomasT said:
From what knowledgeable posters here have said, and from what I've read, either of these do seem to be possible, as there doesn't currently seem to be any definitive reason(ing) for favoring one scenario over the other.

However, I take it that you favor the view that our universe is finite, which I do also. And this view seems to me to suggest that our universe is part of a preexisting medium ... which might also be a finite 'disturbance' in a still larger preexisting medium, or itself infinite, and so on.
...

I'm not sure about what is defined as a "finite" universe. What I was hinting at was that our "universe" might be blob of matter, similar to solar systems or galaxies, floating around other blobs of matter. This could possibly explain dark energy.

Picture a blob of matter a billions of times more massive than our universe. And this blob passes close to our blob (universe). The immense amount of gravity/dark energy (take your pick) could cause our blob to distort, stretch, bend, or any other number of contortions. From our view we could be seeing this event and explaining it as the "everything accelerating away" theory.
 
  • #51
pmghss said:
... Picture a blob of matter a billions of times more massive than our universe. And this blob passes close to our blob (universe). The immense amount of gravity/dark energy (take your pick) could cause our blob to distort, stretch, bend, or any other number of contortions. From our view we could be seeing this event and explaining it as the "everything accelerating away" theory.

This is even MORE nonsensical. You say you have studied basic cosmology but you apparently have never heard of isotropy.
 
  • #52
pmghss said:
I'm not sure about what is defined as a "finite" universe. What I was hinting at was that our "universe" might be blob of matter, similar to solar systems or galaxies, floating around other blobs of matter. This could possibly explain dark energy.

This is complete rubbish and does not fit with ANY current observations. It would require mass that was not part of our Universe and I am not sure how this is "common sense"


pmghss said:
Picture a blob of matter a billions of times more massive than our universe. And this blob passes close to our blob (universe). The immense amount of gravity/dark energy (take your pick) could cause our blob to distort, stretch, bend, or any other number of contortions. From our view we could be seeing this event and explaining it as the "everything accelerating away" theory.

As phinds has stated this would completely disgree with the cosmological principle of homogeneity. In fact the whole idea of "matter that's is not part of our Universe" is ridiculous. The Universe = the totality of everything, a unified spacetime in which all bosons/fermions exist and I think talking about "outside" is pointless.
 
  • #53
Cosmo Novice said:
This is complete rubbish and does not fit with ANY current observations. It would require mass that was not part of our Universe and I am not sure how this is "common sense"

As phinds has stated this would completely disgree with the cosmological principle of homogeneity. In fact the whole idea of "matter that's is not part of our Universe" is ridiculous. The Universe = the totality of everything, a unified spacetime in which all bosons/fermions exist and I think talking about "outside" is pointless.

One of the points I was trying to make is that "outside" is infinite, and what we call "universe" may just be a blob of matter floating around other blobs of matter.
I am not meaning a multi-verse, in which each "universe" is separate and travel to and from each one is impossible.

Oh, and apparently I am not the only one who has these so called "rubbish" theories. Have a look at the episode of "The Universe: God and the Universe", and start around 09:50.
 
  • #54
pmghss said:
One of the points I was trying to make is that "outside" is infinite, and what we call "universe" may just be a blob of matter floating around other blobs of matter.


Which is exactly what is nonsensical, by definition. "Universe" is by definition, all there is. There IS no outside.

Oh, and apparently I am not the only one who has these so called "rubbish" theories. Have a look at the episode of "The Universe: God and the Universe", and start around 09:50.

Uh ... dude, if you plan on learning physics from sensationalized popularizations of fanciful theories, then I can only say good luck with that.
 
  • #55
phinds said:
Which is exactly what is nonsensical, by definition. "Universe" is by definition, all there is. There IS no outside.
Then quit using the term "Universe". Call it Gobbledeegook, Blather, Blob-o-muk. Make something up. You seem to be stuck on the definition of a word. I'm calling everything we can see or detect a "Blob of Matter". Or how about - The Big Blob.

As I stated before, outside does not stop.

phinds said:
Uh ... dude, if you plan on learning physics from sensationalized popularizations of fanciful theories, then I can only say good luck with that.
That episode was released weeks after my previous posts. My opinions are not based on "sensationalized popularizations of fanciful theories" as you call them. I was merely pointing out that some others in the world have similar theories. And in fact, I do not agree with some of the mainstream theories suggested on that show.
 
  • #56
pmghss said:
Then quit using the term "Universe". Call it Gobbledeegook, Blather, Blob-o-muk. Make something up. You seem to be stuck on the definition of a word. I'm calling everything we can see or detect a "Blob of Matter". Or how about - The Big Blob.

As I stated before, outside does not stop.

You're saying that everything we can see, aka the Observable Universe, is a blob of matter floating around with other blobs elsewhere? We already have a word describing your blob of matter; The Observable Universe. The Universe as a whole is defined to be everything, everywhere, no matter what. You are 100% free to imagine something else outside of the "Universe", however if you are going to post here then you are must stick to the rules of the forum which do not allow for personal theories.

And in fact, I do not agree with some of the mainstream theories suggested on that show.

Such as? The current mainstream model is based off of observations of the observable universe. They are not simply made up. Feel free to disagree, but you really don't have a good reason to other than you just don't want to believe it's true.
 
  • #57
Drakkith said:
You're saying that everything we can see, aka the Observable Universe, is a blob of matter floating around with other blobs elsewhere? We already have a word describing your blob of matter; The Observable Universe. The Universe as a whole is defined to be everything, everywhere, no matter what. You are 100% free to imagine something else outside of the "Universe", however if you are going to post here then you are must stick to the rules of the forum which do not allow for personal theories.

Ok, then nobody should be allowed to post any theories about The Big Bang. That is exactly what it is - personal theories! There is no 100% proof of evidence the Big Bang even happened! It sounds like all you want is YOUR safe standard model theories that everyone learns in school and REPEATS it over and over again until you think it's FACT. My theories are just as valid as any of this magical-universe-was-created-from-a-single-point-of-infinite-density so-called-theory.

Everything we have witnessed in the universe "so far" has obeyed the laws of physics. And yet when it comes to the (so called beginning of the) universe itself, the realm of supernatural and fantasy seem to invade thought. Anyone can believe what they want and repeat what they have heard.
Some try to find real solutions.

To answer your question - What we see as the observable "universe" may only be because our technology can only see that far. If there are blobs of matter that are 100s of billions or even trillions of light years away, we may not be able to see them... yet.



Drakkith said:
Such as? The current mainstream model is based off of observations of the observable universe. They are not simply made up. Feel free to disagree, but you really don't have a good reason to other than you just don't want to believe it's true.

No, it's about conclusions taken to the extreme. The clues we have, CBR, point to "some" kind of event that happened to spread the cosmic background radiation throuout the universe. Hubble's Law points to "some" event that led to objects speeding away from one another. For some reason, these points were taken to the extreme to invent the Big Bang theory and everything starting from a dot. pfft!
 
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  • #58
pmghss said:
Ok, then nobody should be allowed to post any theories about The Big Bang. That is exactly what it is - personal theories! There is no 100% proof of evidence the Big Bang even happened! It sounds like all you want is YOUR safe standard model theories that everyone learns in school and REPEATS it over and over again until you think it's FACT. My theories are just as valid as any of this magical-universe-was-created-from-a-single-point-of-infinite-density so-called-theory.

The term "big bang" really has two meanings. The first is the "singularity" which is a term we use for the "start" of it all, or "t=0", and pretty much means "we don't know"

The second refers to everything this that happened starting at one Plank Time AFTER the singularity. If you contend that that is not at all well understood and is personal therories, you will need to find another forum on which to have that discussion since that point of view will be looked at hear as what I think would be called something like low level crackpottery. It's not a bad a promoting perpetual motion, but it is not mainstream physics.


No, it's about conclusions taken to the extreme. The clues we have, CBR, point to "some" kind of event that happened to spread the cosmic background radiation throuout the universe. Hubble's Law points to "some" event that led to objects speeding away from one another. For some reason, these points were taken to the extreme to invent the Big Bang theory and everything starting from a dot. pfft!

Nonsense. See above regarding the second concept.
 
  • #59
He doesn't mean outside the universe, he means beyond the observable universe.

Am I wrong in saying that based on the standard model, there is no evidence to suggest there is anything different that what we already observe but BBT says nothing about what is beyond the observable universe? It's possible that there could be larger cosmological structures than galaxies, but the standard model doesn't predict them.
 
  • #60
Fuzzy Logic said:
Am I wrong in saying that based on the standard model, there is no evidence to suggest there is anything different that what we already observe but BBT says nothing about what is beyond the observable universe?

The "standard model 2012" says nothing about whether there are universes outside of the observable universe. There are people that are working on these sorts of things, but right now its in the "we are guessing" stage.

see http://arxiv.org/abs/1107.2593 for one weird idea

Also what the "standard model" refers to, changes from year to year. In 2012, the "standard model of cosmology" is that the expansion of the universe is accelerating, which contradicts the "standard model of cosmology 1995."

If one of these weird ideas gets observations support, then they'll be part of "standard model 2025."

It's possible that there could be larger cosmological structures than galaxies, but the standard model doesn't predict them.

They do. One of the "standard model 2012" is that there are large cosmological structures, and that galaxies formed "top down". Which is to say that the largest structures in the universe were formed around the time of the BB, and that galaxies formed in these filaments. The alternative model was that there were no large structures, and galaxies formed bottom up.

The "top down model" of galaxy formation was added to the "standard model" around 1990. It wasn't part of "Standard Model '85" but was part of "Standard Model '95"
 
  • #61
pmghss said:
There is no 100% proof of evidence the Big Bang even happened!

There's what I consider 99.9% evidence in that we can see the big bang. Trying to argue that the big bang didn't happen to most astrophysicists is like trying to argue that the sun and moon don't exist. I see this big glowing thing in the sky, and I see the this big round thing at night.

Similarly, I see this big glowing thing in microwaves that in all directions.

Everything we have witnessed in the universe "so far" has obeyed the laws of physics. And yet when it comes to the (so called beginning of the) universe itself, the realm of supernatural and fantasy seem to invade thought.

There is a reason for that. If you extrapolate to t=0, then the "laws of physics" don't work, so you have to make up something weird.

To answer your question - What we see as the observable "universe" may only be because our technology can only see that far. If there are blobs of matter that are 100s of billions or even trillions of light years away, we may not be able to see them... yet.

We can't see them at all. If you look at 13 billion light years, you see the big bang. You can't see any further back than the big bang. We know the universe is finite in time, because we can see the end of the universe so to speak.

It's also not a technology issue. If you do galaxy counts, you'll find that the number of galaxies start going down well, well before the detection limits.

The clues we have, CBR, point to "some" kind of event that happened to spread the cosmic background radiation throuout the universe. Hubble's Law points to "some" event that led to objects speeding away from one another. For some reason, these points were taken to the extreme to invent the Big Bang theory and everything starting from a dot. pfft!

Well no...

The current models don't say what happens at t=0. The backward guess ends at about t=10^(-52) seconds.
 
  • #62
ThomasT said:
However, I take it that you favor the view that our universe is finite, which I do also. And this view seems to me to suggest that our universe is part of a preexisting medium ... which might also be a finite 'disturbance' in a still larger preexisting medium, or itself infinite, and so on.

There is a large class of speculative models called "eternal inflation" that are based on that idea. The hard part as with any speculative models is to figure out how go connect them with observational evidence, and people are pretty hard at work with that. One thing that layman don't quite realize is that there is a ton of data from observations and very little of cosmology is "pure thought."

We know from CMB measurements that the universe is isotropic and homogenous out to some limit that is larger than the directly observable universe. It's quite possible that then next round of WMAP measurements will show that there is some ultra-large scale anisotropic or inhomogenity.


I might have to revise my opinion, as stated in post #43, that the very large scale structure (that is, the stellar distribution) of our universe doesn't seem to be particularly isotropic or homogeneous.

It actually is. The universe is lumpy but its lumpy in the same way in all directions as far as we can tell. What people are looking for in order to figure out if we are in some even bigger bubble is evidence that the universe is lumpy in different ways in different directions.

Also a lot of the pictures you see are set up to "magnify" the lumpiness. The actual density difference between the thick parts and the thin parts of the universe is in fact extremely tiny.

If the simulation is based on some 'fractalization' assumptions (is it? ... I have no idea), then is it possible that a still much larger view will reveal the wall structure anomalies that are evident from observations ... and so on?

People have looked and haven't found anything.

A lot of modern cosmology involves "measuring lumpiness"

http://www.astro.caltech.edu/~george/ay21/eaa/eaa-powspec.pdf

One thing that people have found is that at large scales the power spectrum goes down (i.e. there aren't any hyper large walls).

There are also pretty impressive plots of the "lumpiness" of the CMB

http://backreaction.blogspot.com/2007/12/cmb-power-spectrum.html

One thing that's really impressive is that there is "extra lumpiness" at some wavelengths, and we can get them by having dark matter slosh back and forth.

Wrt this, one thing that came to mind was that the filament-like structure suggests regions of constructive and destructive wave interference. Is this an acceptable/possible inference from the data?

Yes. They are called acoustic peaks because they result from sound waves in the early universe. Not only can you *see* the big bang, but you can *hear* the big bang. One reason that we think that there is dark matter is that it sounds different.
 
  • #63
phinds said:
If you contend that that is not at all well understood and is personal therories, you will need to find another forum on which to have that discussion since that point of view will be looked at hear as what I think would be called something like low level crackpottery.

In fact, what happens at Planck's time is extremely poorly understood and there is a ton of different ideas about what happened. The hard part isn't coming up with a new idea. The really hard part is to show that an idea is *wrong*.

Saying, I have this new idea on what happened at t=0 is not very interesting. What people are interested in is to come up with ways that you can show that a certain idea about what happened at t=0 won't work. Also there are about a dozen different proposals for what happened before the BB, and it helps to know what they are so that you don't end up reinventing the wheel.

As you move away from t=0, then things become more and more well understood. If you want to make up wild new models for what happened at Planck's time, you can do that without much trouble. Personally, I find thinking about what happened at t=300,000 years to be more interesting because you *can't* make up anything. At t=300,000, the temperature of the universe is about 3000 kelvin, and I run into things that are 3000 kelvin every day.

It's not a bad a promoting perpetual motion, but it is not mainstream physics.

Mainstream physics isn't mainstream physics. Part of what makes physics interesting is that it changes surprisingly quickly. There are some basic things that I learned about cosmology in 1991 that are now known to be very wrong.

The big mistake that people make about cosmology is to assume that it's philosophy, when in fact it's quite observational. We know about the coast of Norway because we can map the coast of Norway, and we know about the big bang because we can see and map it.
 
  • #64
I agree with TQ, our observational data is very extensive and sophisticated. Scientists work very hard to eliminate systematic [measurement] errors, so, our data is highly reliable and well vetted. The interpretation of that data is a different matter. Despite the best efforts of the best scientists representing a number of specialties [math, particle physics, cosmology, etc.] it is still difficult to reach a consensus on what the data is telling us. We build and tear down different models on a daily basis. The one we have now [LCDM] is very strong, but, still imperfect. There is no disagreement on that point. That's why we continue to explore, measure, calculate and imagine.
 
  • #65
pmghss said:
Ok, then nobody should be allowed to post any theories about The Big Bang. That is exactly what it is - personal theories!

No, the standard model for cosmology, which is the Big Bang model, is not a "personal" theory. It has been developed by thousands of people all over the world from the best observations we are capable of making with the most advanced equipment ever built by mankind for this task. It is anything but a "personal theory".

There is no 100% proof of evidence the Big Bang even happened! It sounds like all you want is YOUR safe standard model theories that everyone learns in school and REPEATS it over and over again until you think it's FACT. My theories are just as valid as any of this magical-universe-was-created-from-a-single-point-of-infinite-density so-called-theory.

There isn't 100% proof that I even exist. If you are looking for 100% proof of anything, then science is not for you. I suggest you read up on PF rules about the purpose of this site. It may surprise you that the main purpose is to teach people about mainstream science, not banter back and forth about personal theories.

Everything we have witnessed in the universe "so far" has obeyed the laws of physics. And yet when it comes to the (so called beginning of the) universe itself, the realm of supernatural and fantasy seem to invade thought. Anyone can believe what they want and repeat what they have heard.
Some try to find real solutions.

We don't know about the beginning. It isn't even possible at the moment. It may not ever be possible. We can only extrapolate backwards using our current knowledge, which is almost guaranteed to be incorrect at the energy levels of the very early universe.

To answer your question - What we see as the observable "universe" may only be because our technology can only see that far. If there are blobs of matter that are 100s of billions or even trillions of light years away, we may not be able to see them... yet.

The limit on how far we can see is NOT based on our technology, it is based on the finite speed of light. No amount of technology is going to overcome that unless it turns out that we could somehow work around the speed of light being the maximum speed limit. And that falls into the realm of science fiction, not science.

No, it's about conclusions taken to the extreme. The clues we have, CBR, point to "some" kind of event that happened to spread the cosmic background radiation throuout the universe. Hubble's Law points to "some" event that led to objects speeding away from one another. For some reason, these points were taken to the extreme to invent the Big Bang theory and everything starting from a dot. pfft!

You have some misconceptions about this subject. The Big Bang theory says almost exactly what you just said. It does NOT say that the universe started from a singularity.
 
  • #66
Anyone here ever read Flatland by Edwin Abbott? Beings of a 2 dimensional reality could not comprehend a 3 dimensional visitor. Hmmmm, wonder what we don't comprehend?
 
  • #67
nihilnemo said:
Anyone here ever read Flatland by Edwin Abbott? Beings of a 2 dimensional reality could not comprehend a 3 dimensional visitor. Hmmmm, wonder what we don't comprehend?

Sorry, but for one thing, I don't even comprehend these 2 dimensional beings or their 2 dimensional world. Even if they are only one atom thick these beings are in the third dimension. If not, how do they live, eat, grow, excrete, reproduce, die, think about the third dimension, or anything? They are just as inconceivable to me as the five, six or eleven dimensional places I also cannot comprehend.
 
  • #68
chaszz said:
Sorry, but for one thing, I don't even comprehend these 2 dimensional beings or their 2 dimensional world. Even if they are only one atom thick these beings are in the third dimension. If not, how do they live, eat, grow, excrete, reproduce, die, think about the third dimension, or anything?
No, they are not one atom thick. They have zero thickness.
chaszz said:
They are just as inconceivable to me as the five, six or eleven dimensional places I also cannot comprehend.
Not quite. We can understand lower dimensions. I can easily comprehend manipulating lower-dimensional objects, such as taking a 0D point and sweeping it one inch to create a 1D line, then sweeping the line one inch to create a 2D square then sweeping the square one inch to create a 3D cube.

But it becomes challenging to comprehend sweeping a cube one inch to create a 4D tesseract...
 
<h2>1. What is a non-ballistic big bang?</h2><p>A non-ballistic big bang refers to the theory that the universe did not originate from a single, concentrated point of matter and energy. Instead, it suggests that the universe has always existed in some form and has been expanding and evolving over time.</p><h2>2. How is a non-ballistic big bang different from the traditional big bang theory?</h2><p>The traditional big bang theory suggests that the universe began as a single point of infinite density and has been expanding outward from that point ever since. However, the non-ballistic big bang theory proposes that the universe has always existed and has been expanding and evolving in a more gradual and continuous manner.</p><h2>3. What evidence supports the idea of a non-ballistic big bang?</h2><p>One of the main pieces of evidence for a non-ballistic big bang is the observation that the expansion of the universe is not uniform. This suggests that the universe is not expanding from a central point, but rather from multiple points throughout space. Additionally, the discovery of dark energy and dark matter also supports the idea of a non-ballistic big bang.</p><h2>4. Does the non-ballistic big bang theory conflict with the idea of a beginning of the universe?</h2><p>No, the non-ballistic big bang theory does not necessarily conflict with the idea of a beginning of the universe. While it suggests that the universe has always existed in some form, it does not rule out the possibility of a specific starting point or event that triggered the expansion and evolution of the universe.</p><h2>5. How does the concept of a non-ballistic big bang impact our understanding of the universe?</h2><p>The idea of a non-ballistic big bang challenges our traditional understanding of the origins and evolution of the universe. It opens up new possibilities and avenues for research and exploration, and may lead to a better understanding of the fundamental laws and forces that govern the universe.</p>

1. What is a non-ballistic big bang?

A non-ballistic big bang refers to the theory that the universe did not originate from a single, concentrated point of matter and energy. Instead, it suggests that the universe has always existed in some form and has been expanding and evolving over time.

2. How is a non-ballistic big bang different from the traditional big bang theory?

The traditional big bang theory suggests that the universe began as a single point of infinite density and has been expanding outward from that point ever since. However, the non-ballistic big bang theory proposes that the universe has always existed and has been expanding and evolving in a more gradual and continuous manner.

3. What evidence supports the idea of a non-ballistic big bang?

One of the main pieces of evidence for a non-ballistic big bang is the observation that the expansion of the universe is not uniform. This suggests that the universe is not expanding from a central point, but rather from multiple points throughout space. Additionally, the discovery of dark energy and dark matter also supports the idea of a non-ballistic big bang.

4. Does the non-ballistic big bang theory conflict with the idea of a beginning of the universe?

No, the non-ballistic big bang theory does not necessarily conflict with the idea of a beginning of the universe. While it suggests that the universe has always existed in some form, it does not rule out the possibility of a specific starting point or event that triggered the expansion and evolution of the universe.

5. How does the concept of a non-ballistic big bang impact our understanding of the universe?

The idea of a non-ballistic big bang challenges our traditional understanding of the origins and evolution of the universe. It opens up new possibilities and avenues for research and exploration, and may lead to a better understanding of the fundamental laws and forces that govern the universe.

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