Is the universe deterministic?

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JEDI

Lifer
Sep 25, 2001
29,391
2,738
126
Originally posted by: mundane
AFAIK, observing something changes its state, so while you're gleaning enough information to determine a future state you've already invalidated your projections.

what is this called?
 

Aberforth

Golden Member
Oct 12, 2006
1,707
1
0
Originally posted by: Cerpin Taxt
Originally posted by: Aberforth
Originally posted by: ICRS
What is your thought. Is there any actual randomness in the universe, or is it all predetermined. The state of any atom in the future can be determined if we have enough knowledge about it today.

Yes it is pre-determined. The universe isn't random, there is definitely orderliness in the universe. Gandhi said this based on his experience, let me know if you want that audio recording (5 mins)- he talks about Universe, God and other facts.

"Orderly" and "non-random" are not synonyms for "pre-determined."

"Random" is the word created by us to express our incapacity to understand the universe. Everything has order, an algorithm that is pre-determined.
 

Hayabusa Rider

Admin Emeritus & Elite Member
Jan 26, 2000
50,879
4,268
126
Originally posted by: Cerpin Taxt
Originally posted by: Hayabusa Rider

I guess you mean infinity. Precisely how do you get infinite anything?

That's the problem.

Semantics is the problem here I think. Since the universe had an initial starting condition, yes it's deterministic. That means little to mere mortals though. You have to be God, or as good as to predict what happens next. You would need to know the initial conditions with infinite precision to figure out how things unfold.

So I would say that the universe in strict terms is deterministic, but it's absolutely impossible to predict what happens down the road, except in broad terms.

I agree with you that the controversy is largely semantic, but I do not think the idea that "the universe had an initial starting condition" is supportable given the evidence.

Moreover, and in my opinion at least (and the opinion of several prominent physicists), the evidence indicates that reality is in fact a bit of both determinism and indeterminism. That is to say, the outcomes of events are probabilistic, yet each possible probability does inevitably actualize in fact in some universe within a larger multiverse.

That of course depends on which version of creation one subscribes to. A "big bang" (which has always seemed overly simplistic to me) suggests a starting point, however if one considers "many worlds" and all that implies, then we have another semantic problem. Precisely what is a "universe"?

I'm not even convinced that we are intellectually capable as a species to formulate the right questions within the proper context, much less answer them. In this sense perhaps the determinacy of the universe isn't so relevant as are Gödel's incompleteness theorems. This may be a case of having to determine what is true or false and not being able to do so.
 

Howard

Lifer
Oct 14, 1999
47,982
11
81
Originally posted by: her209
Originally posted by: Throckmorton
You'd have to simulate EVERY particle in the universe in order to predict everything. And we can't even simulate the effect of a butterfly flapping its wings, because that involves billions of molecules.
You don't even have to do that. Just simulate the computer that is doing the simulation to get the answer.
You cannot emulate a computer that is faster than the one doing the emulation.
 

Hayabusa Rider

Admin Emeritus & Elite Member
Jan 26, 2000
50,879
4,268
126
Originally posted by: Aberforth
Originally posted by: Cerpin Taxt
Originally posted by: Aberforth
Originally posted by: ICRS
What is your thought. Is there any actual randomness in the universe, or is it all predetermined. The state of any atom in the future can be determined if we have enough knowledge about it today.

Yes it is pre-determined. The universe isn't random, there is definitely orderliness in the universe. Gandhi said this based on his experience, let me know if you want that audio recording (5 mins)- he talks about Universe, God and other facts.

"Orderly" and "non-random" are not synonyms for "pre-determined."

"Random" is the word created by us to express our incapacity to understand the universe. Everything has order, an algorithm that is pre-determined.

While you may be correct, what scientific method was used to come to your categorical conclusion? At the risk of introducing religion into the discussion, why would God be compelled to create by algorithm? If God doesn't enter into anything, then why would nothing be compelled to be algorithmic? I'm not going to beat on you for a faith based statement, but I don't see how it adds to this particular discussion.
 

Sumguy

Golden Member
Jun 2, 2007
1,409
0
0
This reminds me of my roommates philosophy assignment. He had to agree/disagree with this statement and then argue for or against it. I don't know the exact wording he used, but it went something like this:

Imagine an omnipotent being. This being has full knowledge of all of the laws of the universe and knew the exact position of every atom, subatomic particle, etc before the big bang occurred. If you agree that all things of the universe must follow certain laws without exception, then it would make sense to believe that this being would know how the universe unfolds after the big bang. He would know precisely where everything is located at any given time.

Follow this to the creation of Earth. As the atoms combined to form molecules, this being knew beforehand that humans would come into existence. Since living organisms react through the manipulation of chemicals in their body and the outside environment is obviously following a rule set, they aren't necessarily free from the initial rules. Thus, every event of a persons life can be predicted. In other words, people do not have free will.



Of course that's taking the whole predetermination thing to a different level. But my roommate couldn't find a way to argue against it (logically, since he agreed with the progression of the ideas). I probably butchered to original statement.
 

Argo

Lifer
Apr 8, 2000
10,045
0
0
Considering that at the quantum level every event is random (just has probability associated with it) I would imagine that universe on the large is not deterministic.
 

Cerpin Taxt

Lifer
Feb 23, 2005
11,940
542
126
Originally posted by: Hayabusa Rider

That of course depends on which version of creation one subscribes to.
What "creation"? I don't observe an origin of the universe. Do you?

A "big bang" (which has always seemed overly simplistic to me) suggests a starting point, however if one considers "many worlds" and all that implies, then we have another semantic problem. Precisely what is a "universe"?
Generally speaking, the universe is considered the set of everything that exists.

I'm not even convinced that we are intellectually capable as a species to formulate the right questions within the proper context, much less answer them. In this sense perhaps the determinacy of the universe isn't so relevant as are Gödel's incompleteness theorems. This may be a case of having to determine what is true or false and not being able to do so.
Gödel's theorems are theorems about language, not reality.
 

Rage187

Lifer
Dec 30, 2000
14,276
4
81
hard to explain but I can give you a visual example of how the universe functions.

Take a pen and draw a circle over and over on a piece of paper. After a few passes you'll notice sometimes the pen falls into the lines left by the previous circles and sometimes it strays out and creates new lines. The more that you hit the same lines, the deeper they get and your chance of landing in them increases.

Events on Earth at least, follow the same path as events that have already happened. It is more likely they fall into the same lines as the previous events and their results seem predetermined. But some events can create their own lines.

I also believe some people can feel these lines or 'grooves' and thus can predict the future. It's not actually that they can see the future but their internal senses can feel the outcome of events.

I call it 'the needle in the groove' theory.



 

Cerpin Taxt

Lifer
Feb 23, 2005
11,940
542
126
Originally posted by: Aberforth
Originally posted by: Cerpin Taxt
Originally posted by: Aberforth
Originally posted by: ICRS
What is your thought. Is there any actual randomness in the universe, or is it all predetermined. The state of any atom in the future can be determined if we have enough knowledge about it today.

Yes it is pre-determined. The universe isn't random, there is definitely orderliness in the universe. Gandhi said this based on his experience, let me know if you want that audio recording (5 mins)- he talks about Universe, God and other facts.

"Orderly" and "non-random" are not synonyms for "pre-determined."

"Random" is the word created by us to express our incapacity to understand the universe.
Actually, there is quite a bit of controversy about the meaning of the word "random," as well, although it is particularly over the disagreement between whether we can confidently identify actual randomness.

Everything has order, an algorithm that is pre-determined.
That's a lovely assertion, but as I already explained, "orderly" is not the same thing as "pre-determined."

 

DarkThinker

Platinum Member
Mar 17, 2007
2,822
0
0
In my belief, the universe acts according to an equation of 999999999999999999999999999999999999999999....to almost infinity of variables.
Yes if you can handle the realization of each one of these variables and let alone calculate a new equations every time you need to....then yes you would certainly be able to predict anything.
However, IMHO the only being that has such a capability is God himself, that's why I believe we make our own decisions, but God can most easily predict them, he does and he knows.
 

Aberforth

Golden Member
Oct 12, 2006
1,707
1
0
Originally posted by: Hayabusa Rider
Originally posted by: Aberforth
Originally posted by: Cerpin Taxt
Originally posted by: Aberforth
Originally posted by: ICRS
What is your thought. Is there any actual randomness in the universe, or is it all predetermined. The state of any atom in the future can be determined if we have enough knowledge about it today.

Yes it is pre-determined. The universe isn't random, there is definitely orderliness in the universe. Gandhi said this based on his experience, let me know if you want that audio recording (5 mins)- he talks about Universe, God and other facts.

"Orderly" and "non-random" are not synonyms for "pre-determined."

"Random" is the word created by us to express our incapacity to understand the universe. Everything has order, an algorithm that is pre-determined.

While you may be correct, what scientific method was used to come to your categorical conclusion? At the risk of introducing religion into the discussion, why would God be compelled to create by algorithm? If God doesn't enter into anything, then why would nothing be compelled to be algorithmic? I'm not going to beat on you for a faith based statement, but I don't see how it adds to this particular discussion.

I don't believe in religion, God to me is an impartial being who treats everyone fairly. I find your comment funny because you cannot prove or disprove the existence of God, if you think God as a being sitting above the clouds and watching us all of us then you are going to be disappointed but what if there is a higher force that is scientific? how much science we know to validate the ultimate question?

The sum total of the cosmic energy is always the same, because to create something in this universe you need a second element or a combination, that cannot be random. The universe formed at least out of two elements, such reaction cannot be random because for randomness there should another force acting on it.

At last, I hope you listen to this audio by Gandhi- he answers most of our questions, I really like it: http://rapidshare.com/files/132889264/gandhi.mp3.html
 

Cerpin Taxt

Lifer
Feb 23, 2005
11,940
542
126
Originally posted by: Aberforth

The sum total of the cosmic energy is always the same, because to create something in this universe you need a second element or a combination, that cannot be random. The universe formed at least out of two elements, such reaction cannot be random because for randomness there should another force acting on it.
That's not randomness.

At last, I hope you listen to this audio by Gandhi- he answers most of our questions, I really like it: http://rapidshare.com/files/132889264/gandhi.mp3.html
I have a very high respect for Gandhi and his philosophy, but Gandhi is no physicist.
 

Hayabusa Rider

Admin Emeritus & Elite Member
Jan 26, 2000
50,879
4,268
126
Originally posted by: Cerpin Taxt
Originally posted by: Hayabusa Rider

That of course depends on which version of creation one subscribes to.
What "creation"? I don't observe an origin of the universe. Do you?

A "big bang" (which has always seemed overly simplistic to me) suggests a starting point, however if one considers "many worlds" and all that implies, then we have another semantic problem. Precisely what is a "universe"?
Generally speaking, the universe is considered the set of everything that exists.

I'm not even convinced that we are intellectually capable as a species to formulate the right questions within the proper context, much less answer them. In this sense perhaps the determinacy of the universe isn't so relevant as are Gödel's incompleteness theorems. This may be a case of having to determine what is true or false and not being able to do so.
Gödel's theorems are theorems about language, not reality.

I didn't observe my parent's birth, however that doesn't invalidate the event. I'm not sure what you are arguing for here.

Also, Gödel's theorems aren't restricted to languages. It made Whitehead and Russel's work fundamentally impossible. It has to do with formal systems, however it's application in principle isn't restricted as you suggest. But perhaps you disagree, so to clarify my point, humans have a finite mind. To understand how the universe works might be beyond what a three pound or so lump of matter can adequately grasp.
 

Aberforth

Golden Member
Oct 12, 2006
1,707
1
0
Originally posted by: Cerpin Taxt
Originally posted by: Aberforth

The sum total of the cosmic energy is always the same, because to create something in this universe you need a second element or a combination, that cannot be random. The universe formed at least out of two elements, such reaction cannot be random because for randomness there should another force acting on it.
That's not randomness.

At last, I hope you listen to this audio by Gandhi- he answers most of our questions, I really like it: http://rapidshare.com/files/132889264/gandhi.mp3.html
I have a very high respect for Gandhi and his philosophy, but Gandhi is no physicist.

Sadly the world asks certified people to prove the authority their assertions.
 

Rage187

Lifer
Dec 30, 2000
14,276
4
81
Originally posted by: Cerpin Taxt

I have a very high respect for Gandhi and his philosophy, but Gandhi is no physicist.


Einstein believed in god.

Q "To what extent are you influenced by Christianity?"

A "As a child I received instruction both in the Bible and in the Talmud. I am a Jew, but I am enthralled by the luminous figure of the Nazarene."

Q "Have you read Emil Ludwig's book on Jesus?"

A "Emil Ludwig's Jesus is shallow. Jesus is too colossal for the pen of phrasemongers, however artful. No man can dispose of Christianity with a bon mot."

Q "You accept the historical Jesus?"

A "Unquestionably! No one can read the Gospels without feeling the actual presence of Jesus. His personality pulsates in every word. No myth is filled with such life."


Does he count as a physicist?
 

So

Lifer
Jul 2, 2001
25,923
17
81
Originally posted by: Rage187
Originally posted by: Cerpin Taxt

I have a very high respect for Gandhi and his philosophy, but Gandhi is no physicist.


Einstein believed in god.

Q "To what extent are you influenced by Christianity?"

A "As a child I received instruction both in the Bible and in the Talmud. I am a Jew, but I am enthralled by the luminous figure of the Nazarene."

Q "Have you read Emil Ludwig's book on Jesus?"

A "Emil Ludwig's Jesus is shallow. Jesus is too colossal for the pen of phrasemongers, however artful. No man can dispose of Christianity with a bon mot."

Q "You accept the historical Jesus?"

A "Unquestionably! No one can read the Gospels without feeling the actual presence of Jesus. His personality pulsates in every word. No myth is filled with such life."


Does he count as a physicist?

And einstein spent the last half of his life in a fatuous pursuit of a classical unified field theory, refusing to accept quantum theory.

And no, the universe is not deterministic. It is mostly deterministic on a macro scale, but quantum physics demonstrates that on the smallest scales, it is not.
 

Cerpin Taxt

Lifer
Feb 23, 2005
11,940
542
126
Originally posted by: Hayabusa Rider
Originally posted by: Cerpin Taxt
Originally posted by: Hayabusa Rider

That of course depends on which version of creation one subscribes to.
What "creation"? I don't observe an origin of the universe. Do you?

A "big bang" (which has always seemed overly simplistic to me) suggests a starting point, however if one considers "many worlds" and all that implies, then we have another semantic problem. Precisely what is a "universe"?
Generally speaking, the universe is considered the set of everything that exists.

I'm not even convinced that we are intellectually capable as a species to formulate the right questions within the proper context, much less answer them. In this sense perhaps the determinacy of the universe isn't so relevant as are Gödel's incompleteness theorems. This may be a case of having to determine what is true or false and not being able to do so.
Gödel's theorems are theorems about language, not reality.

I didn't observe my parent's birth, however that doesn't invalidate the event.
I don't understand why you think that is relevant to the point. There is compelling evidence that your parents' births happened, yet such isn't the case for any beginning of the universe.

I'm not sure what you are arguing for here.
That there isn't evidence to substantiate the claim that the universe had a beginning.

Also, Gödel's theorems aren't restricted to languages.
Of course they are. That's what theorems of logic are. Read some Wittgenstein.

It made Whitehead and Russel's work fundamentally impossible. It has to do with formal systems, however it's application in principle isn't restricted as you suggest.
Formal systems are systems of language.

But perhaps you disagree, so to clarify my point, humans have a finite mind. To understand how the universe works might be beyond what a three pound or so lump of matter can adequately grasp.
That may be, but it is tangential at best to the points I was disputing.
 

Cerpin Taxt

Lifer
Feb 23, 2005
11,940
542
126
Originally posted by: Rage187
Originally posted by: Cerpin Taxt

I have a very high respect for Gandhi and his philosophy, but Gandhi is no physicist.


Einstein believed in god.
That's debatable, but what's it got to do with the price of tea in China?

Q "To what extent are you influenced by Christianity?"

A "As a child I received instruction both in the Bible and in the Talmud. I am a Jew, but I am enthralled by the luminous figure of the Nazarene."

Q "Have you read Emil Ludwig's book on Jesus?"

A "Emil Ludwig's Jesus is shallow. Jesus is too colossal for the pen of phrasemongers, however artful. No man can dispose of Christianity with a bon mot."

Q "You accept the historical Jesus?"

A "Unquestionably! No one can read the Gospels without feeling the actual presence of Jesus. His personality pulsates in every word. No myth is filled with such life."
Citation, please? More reliable records indicate that Einstein did not believe in a personal God.

Does he count as a physicist?[/quote]

 

Rage187

Lifer
Dec 30, 2000
14,276
4
81
Originally posted by: Cerpin Taxt

Citation, please? More reliable records indicate that Einstein did not believe in a personal God.

saturday evening post, 1929


Edited with more info incase you want to read it in its entirety

An Interview by George Sylvester Viereck," for the October 26, 1929 issue of The Saturday Evening Post


 

RESmonkey

Diamond Member
May 6, 2007
4,818
2
0
Originally posted by: Hayabusa Rider
Originally posted by: RESmonkey
We CAN know everything that will happen in the future. Only problem is, we don't have a supercomputer FAST nor strong enough to compute all the atomic and subatomic particles throughout the universe. IF we could calculate every single item and the physics applied to it, and if we could do it faster than what happens in real life, it would be possible.

But technically, I doubt it because that would be a simulation of the universe the to the exact subatomic and atomic particles, which I bet is unreachable in nature, as you can't exceed the speed of light, and that probably applies to 100%-exact simulation, too.

Nope, because that computer would be part of the universe, and it would therefore have to calculate all it's possible states, and that would then change the current state of the computer, which would require a bigger computer,to figure that out, but THAT would be part of the universe, and therefore you would need a bigger computer...

It's impossible in principle.

Hmm...never thought of it like that :)

Well, if you were outside of the universe, completely detached, (which is not possible), then maybe...