Can Leptons and Quarks Lead to a Theory of Everything?

[hishamfathi]

if leptons and quarks are indeed the ultimate constituents of matter,,
as physicists today tend to believe,we should be able to construct a final theory of the structure of matter,just as Einstein dreamed to doing.
this theory whimsically called the theory of everything. it is a combination of the standard model and a quantum theory of gravity

want to hear your opinions on this theory ?

 

[ZapperZ]

You might want to read this first:

http://www.pnas.org/content/97/1/28.full.pdf

In other words, condensed matter physicists in general do not think that there is such a thing as a "Theory of Everything". And considering that condensed matter is the largest branch of any professional physics society, you can draw your own conclusion from that.

Zz.

 

[Blenton]

I much prefer the Theory of Nothing. That nothing is made of quarks and we're just products of some virtual reality.

 

[SixNein]

if leptons and quarks are indeed the ultimate constituents of matter,,
as physicists today tend to believe,we should be able to construct a final theory of the structure of matter,just as Einstein dreamed to doing.
this theory whimsically called the theory of everything. it is a combination of the standard model and a quantum theory of gravity

want to hear your opinions on this theory ?

The reason it cannot happen is due to the incompleteness theorem.

http://en.wikipedia.org/wiki/Theory...ence_to_G.C3.B6del.27s_incompleteness_theorem

Some people want to believe that models will be the answer, but I'm afraid their going to be disappointed.

 

[lubuntu]

SixNein, you are a one trick pony. Did you just learn about the incompleteness theorem and now think you should apply it to every question possible? it's annoying.

I just don't get it, even if we can't answer everyone question that doesn't change how we should act, we should still do research and see what happens. I don't see the use of these theorems.

 

[SixNein]

SixNein, you are a one trick pony. Did you just learn about the incompleteness theorem and now think you should apply it to every question possible? it's annoying.

I just don't get it, even if we can't answer everyone question that doesn't change how we should act, we should still do research and see what happens. I don't see the use of these theorems.

ROTF You guys keep touching upon it, I can't help it. You know 99.9% of the population cannot name 1 mathematical theorem? Besides it's not like I didn't provide a link with a direct quote from one of the most famous physicist alive. If you cannot trust hawking man who can you trust?

 

[Unknot]

ROTF You guys keep touching upon it, I can't help it. You know 99.9% of the population cannot name 1 mathematical theorem? Besides it's not like I didn't provide a link with a direct quote from one of the most famous physicist alive. If you cannot trust hawking man who can you trust?

There are other physicists just as accomplished as Hawking who do not believe it. Some mathematicians who work in the field would not like the idea that it can be applied to such usasge.

 

[DaveC426913]

You might want to read this first:

http://www.pnas.org/content/97/1/28.full.pdf

In other words, condensed matter physicists in general do not think that there is such a thing as a "Theory of Everything".

I thought that the ToE was simply a model that would combine the 4 fundamental forces into one consistent model. Sure, the ramifications are that this would put us on the path to a model of everything that ever was, is, or will be - but that seems to be a separate issue as far as I see it.

Claiming that we cannot create a model of the entire universe from beginning to end is not the same as claiming we can never unite the 4 forces. (IMO)

(It is also my understanding that the title ToE is a misnomer of sorts. Just like GUT is not really all that grand or unified in that it only covers 3 of the 4 forces, so too ToE does not really cover everything.)

 

[DaveC426913]

You might want to read this first:

http://www.pnas.org/content/97/1/28.full.pdf

In other words, condensed matter physicists in general do not think that there is such a thing as a "Theory of Everything". And considering that condensed matter is the largest branch of any professional physics society, you can draw your own conclusion from that.

Zz.

Actually, a better summation of that article is:

Condensed matter physicsts think that the ToE will be really, really hard to use. Example: because we are starting from first principles, it will tell us little about how proteins fold without vast calculations exceeding our ability.

Well duh.


Having the theory is not the same as applying the theory.

 

[SixNein]

There are other physicists just as accomplished as Hawking who do not believe it. Some mathematicians who work in the field would not like the idea that it can be applied to such usasge.

Some mathematicians, who work in the field, wish they could sweep the entire thing under the rug. It's like the last stand of classical ideology. Godel himself had trouble accepting the implications of his own theorem. He looked for a way out until the day he died.

http://www.damtp.cam.ac.uk/strings02/dirac/hawking/

 

[ZapperZ]

Actually, a better summation of that article is:

Condensed matter physicsts think that the ToE will be really, really hard to use. Example: because we are starting from first principles, it will tell us little about how proteins fold without vast calculations exceeding our ability.

Well duh.


Having the theory is not the same as applying the theory.

No, it is not just "applying it". Besides, Laughlin and Pines are not really THAT dumb to not know the difference.

Phil Anderson's "More is Different" also states the same thing. Even if you know all the basic interactions at the individual particle level, you cannot predict high-order organizations in which many of our emergent phenomena sit in. That's the major point in both of these articles. You cannot derive such collective phenomena out of such interactions.

Zz.

 

[Dmitry67]

Max Tegmark not only believes there is an ultimate TOE, but he even believes the equations of TOE are quite simple
http://arxiv.org/abs/0704.0646

 

[WaveJumper]

A theory of almost everything does look attainable. Besides, if a full TOE is achieved and all interactions and correlations in the universe are described mathematically, what would hardcore atheists say about this puzzling notion? Shouldn't a full TOE explain emergent properties and the mystery surrounding the origin of the universe?

EDIT: IMO a full TOE is utterly impossible. Not by a human brain, or at least it's way way too early to even begin to dream about it. How could a human mind comprehend how a whole galaxy can be squeezed to the size of an atom or even zero by a giant black hole? Aren't we pushing human logic way past its usable limits?

 

[WaveJumper]

I much prefer the Theory of Nothing. That nothing is made of quarks and we're just products of some virtual reality.

We should get cheat codes from time to time. It's unfair all this incredible human drama and no cheats.

 

[SixNein]

Max Tegmark not only believes there is an ultimate TOE, but he even believes the equations of TOE are quite simple
http://arxiv.org/abs/0704.0646

well the problem I have with his hypothesis is this:

I hypothesize that only computable and decidable (in Godel's sense) structures exist

Because then you have to take a look at Cantor and his hypothesis which has pretty much been shown to be impossible to solve. There isn't a consensus, but even the worse renegade would have to say it's a strong argument.

 

[SixNein]

We should get cheat codes from time to time. It's unfair all this incredible human drama and no cheats.

If you discover the cheat code for money, send it my way =P

 

[apeiron]

That's the major point in both of these articles. You cannot derive such collective phenomena out of such interactions.Zz.

Another way of putting it is that you need a theory large enough to account for both upward causation and downward causation. So both how things are constructed from "fundamental" components and how things are constrained by global contexts.

The greeks said the same thing - you need both substance and form (both the local components and the global organisation). Holism and systems science tried to get somewhere with this larger view in the last century.

So as the condensed matter guys point out, physics is unbalanced in believing that everything may be explained from the one side of the story. Fundamental physics can only deliver half of everything.

The TO.5E!

As well as a theory of substance, we need a theory of form.

 

[WaveJumper]

We still are very far away from knowing why we perceive reality the way we do. Any physicist will tell you that reality/the world/ as we perceive it, only exists in our heads. The basic essense of the existence of universe, whether you believe there is an outside world or not, is much different than what our coarse classical human bodies and senses tell us. Why we get such a distorted but beautiful and highly ordered picture of what we term "the universe" is a very deep philosophical question. Suffice to say that a lot of modern physicists appear to be having second thoughts on the 'naturalness' of nature. A simple unification of all the known forces under one theory looks very attainable.

On the other hand, if classical behaviour(e.g. Newton's laws of motion) is an emergent property of large enough quantum systems, the prospects of us finding a TOE would look rather grim.

 

[apeiron]

I think it is too pessimistic to say we don't now know a heck of a lot about how the human mind models the world, and about modelling relationships in general. The level of discussion is unsophisticated within the physics commununity, for sure, but it is sophisticated in other communities, particular theoretical biology.

And a decoherence approach to QM would give the kind of top down plus bottom up combined perspective that would make sense. That would not seem mysterious.

 

[DaveC426913]

I think it is too pessimistic to say we don't now know a heck of a lot about how the human mind models the world...

I don't think we're talking about the mere mental perception of the world; I think we're talking about much more fundamental experiences, such as why organisms (and not just human ones) experience space-time as three dimensions moving within a fourth etc.

 

[SixNein]

I don't know how you guys can hope for a TOE with the incompleteness proof staring you in the face. It's more or less pretending that it's still possible when it clearly isn't.

 

[Dmitry67]

SixNein, why do you think that Goedels theorem is applicable to physics?
Goedel theorem is applicable to only axiomatic models which are powerful enough to Peano axiomatic. It is not applicable, for example, to geometry (even geometry contains 'numbers' as coordinates, you can not derive Peno there explicitly)

But let's assume that it is applicable to physics. I don't see any problems with it. There some undecidable statements about natural numbers, does it mean that we don't have a number theory? No of course. So we can have axioms (TOE) even if they are incomplete.

In fact, the incompletiness would also affect the hypotetical 'pure-Newtonian' world, where the classical mechanics rule. If you manage to build Turing machine there (it must be complex enough to be self-extendable to be infinite) then you face the same incompletiness problems.

 

[SixNein]

SixNein, why do you think that Goedels theorem is applicable to physics?
Goedel theorem is applicable to only axiomatic models which are powerful enough to Peano axiomatic. It is not applicable, for example, to geometry (even geometry contains 'numbers' as coordinates, you can not derive Peno there explicitly)

But let's assume that it is applicable to physics. I don't see any problems with it. There some undecidable statements about natural numbers, does it mean that we don't have a number theory? No of course. So we can have axioms (TOE) even if they are incomplete.

In fact, the incompletiness would also affect the hypotetical 'pure-Newtonian' world, where the classical mechanics rule. If you manage to build Turing machine there (it must be complex enough to be self-extendable to be infinite) then you face the same incompletiness problems.

Physical theories are mathematical models, so Godels theorem applies. A theory of everything would be inconsistent. This means that a theory could not cover everything, which is the purpose of a TOE, and be correct. So physics will always be incomplete, just like mathematics.

Personally, I think its a great thing. There will always be new discoveries and new things to explore.

 

[quantumdude]

Physical theories are mathematical models, so Godels theorem applies.

I think you misunderstand both Goedel's theorem or theoretical physics. As I said in the "origin of the universe" thread, physical propositions are decided empirically, not formally.

 

[Dmitry67]

Physical theories are mathematical models, so Godels theorem applies.

There are many mathematical models which are Godel-free, where it is not applicable - surprise, surprise!

 

[quantumdude]

Yes, absolutely. The reason physics will never be complete has nothing to do with Goedel. It has to do with the fact that physics is done a posteriori, as opposed to mathematics which is a priori. That means that it's always possible to do an experiment tomorrow that current theories cannot describe. That is why physics will never be complete. Although I'm loathe to use the word "complete" here for fear that it will be misunderstood as the same kind of "complete" that Goedel was talking about...

 

[Dmitry67]

A theory of everything would be inconsistent. This means that a theory could not cover everything,

Just noticed it:)
Inconsistent theory covers everything, because ANY statement is derivable there.
What you probably wanted to say, "incomplete"

 

[Dmitry67]

Yes, absolutely. The reason physics will never be complete has nothing to do with Goedel. It has to do with the fact that physics is done a posteriori, as opposed to mathematics which is a priori. That means that it's always possible to do an experiment tomorrow that current theories cannot describe. That is why physics will never be complete. Although I'm loathe to use the word "complete" here for fear that it will be misunderstood as the same kind of "complete" that Goedel was talking about...

Well, here I am not sure.
If Max Tegmark's vision of TOE is true (mathematics does not DEFINE real world, it IS real world) then there is no difference between physics and mathematics.

 

[quantumdude]

How would one even begin to test such a hypothesis? To me that sounds like saying that a map isn't just a representation of the territory, it is the territory.

 

[Dmitry67]

How would one even begin to test such a hypothesis? To me that sounds like saying that a map isn't just a representation of the territory, it is the territory.

Piece of cake
If there is no difference between map and territory, then map IS territory
If TOE can be defined using just equations, with ZERO blah-blah (Max Tegmark calls it 'baggage') then it is true

 

[quantumdude]

If there is no difference between map and territory,

That's a pretty big "if". How would you know if there is no difference? There's an intrinsic error associated with every measurement.

 

[SixNein]

Yes, absolutely. The reason physics will never be complete has nothing to do with Goedel. It has to do with the fact that physics is done a posteriori, as opposed to mathematics which is a priori. That means that it's always possible to do an experiment tomorrow that current theories cannot describe. That is why physics will never be complete. Although I'm loathe to use the word "complete" here for fear that it will be misunderstood as the same kind of "complete" that Goedel was talking about...

"That means that it's always possible to do an experiment tomorrow that current theories cannot describe. " -tom

This is exactly what the incomplete theorem is stating.

"That is why physics will never be complete"

Physics will never be complete because math cannot be complete. You seem to want to separate the two fields, but they are joined at the hip. When a new thing is observed in physics, you usually find something in pure mathematics for it.

 

[SixNein]

That's a pretty big "if". How would you know if there is no difference? There's an intrinsic error associated with every measurement.

You do know that is defined in math as well. Cantor opened that can of worms, as well as many others.

I think you just haven't seen mathematics in this kind of light. Physics has poster children like Einstein and Newton. While in the early days some names appear on both list, they are mostly remembered for work in physics. While great mathematicians are not mentioned at all, or they are just remembered for going crazy.

Example List:
Georg Cantor
Aryabhatta
Kurt Godel
Euclid of Alexandria
Carl F. Gauss
Leonhard Euler
Bernhard Riemann
Henri Poincare
Niels Abel
Evariste Galois

When a lot of mathematicians see the universe, they see numbers. It's one of the reasons some mathematicians go nuts. They get too focused on the numbers, and they don't step back and look at the big picture. You can take any number and find it everywhere.

 

[Dmitry67]

You still need to prove that Godel theorem is applicable to TOE equations.

 

[SixNein]

You still need to prove that Godel theorem is applicable to TOE equations.

Perhaps you should read Stephen Hawking's page on Godel's theorem:
http://www.damtp.cam.ac.uk/strings02/dirac/hawking/

My explanation is that physical theories are mathematical models. To give you an example, Einsteins theory of relativity relies on the geometry created by Riemann (geometry of sapce). If there is some kind of mathematical extension or limitation found of Riemanns work, it will directly effect physics and it's concept of space.

 

[Dmitry67]

OMG! How many times should I repeat: Godels theorem IS NOT applicable to ANY mathematical axiom system (and Hawking does not try cover the applicability issues in this short article). Geometry for example is Godel-free. Even algebra - you probably think that algebra is about numbers, so Godel is applicable to algebra, BUT IT IS NOT!

So when you have some equations (TOE for example) IT DOES NOT MEAN that Godels theorem is automatically applicable.

 

[SixNein]

OMG! How many times should I repeat: Godels theorem IS NOT applicable to ANY mathematical axiom system (and Hawking does not try cover the applicability issues in this short article). Geometry for example is Godel-free. Even algebra - you probably think that algebra is about numbers, so Godel is applicable to algebra, BUT IT IS NOT!

So when you have some equations (TOE for example) IT DOES NOT MEAN that Godels theorem is automatically applicable.

Did you even read my post?

And yes it very much applies to physics.

Another Paper:
http://pirate.shu.edu/~jakistan/JakiGodel.pdf

 

[apeiron]

Jaki writes...
"Herein lies the ultimate bearing of Gödel's theorem on physics. It
does not mean at all the end of physics. It means only the death knell on
endeavours that aim at a final theory according to which the physical
world is what it is and cannot be anything else. Gödel's theorem does not
mean that physicists cannot come up with a theory of everything or TOE
in short. They can hit upon a theory which at the moment of its formulation
would give an explanation of all known physical phenomena. But in
terms of Gödel's theorem such a theory cannot be taken for something
which is necessarily true."

I would phrase it somewhat differently.

We can have a TOE, but we can't know it to be true. We will only be able to observe that it seems true.

So the Platonic dream is dead. Maths is not special in that sense, but instead just a practical exercise in modelling, with the limitations on "truth" that are part of modelling.

The universe can still be mathematical (with a small m) because mathematics is the modelling of logical patterns, patterns which for some reason (and here we would get into self-organisation metaphysics) will emerge with high regularity.

Godel should be taken as the death knell of Platonism. But there were already many other reasons for rejecting Platonism already.

A TOE is still a plausible project. Though the requirements are very high - all variable constants would have to emerge out the modelling of the ultimate pattern.

Current approaches like strings and standard models don't even seem close to achieving this. But actually, symmetry breaking as a general story can be seen to be heading in the desired direction.

And even if the goal cannot be achieved, it does appear to proper to be orientated in its direction.

So godel rightfully kills off Platonism, but that still leaves the modelling relations approach as the valid path to knowledge. And a TOE can still stand as its ultimate goal.

 

[SixNein]

Jaki writes...
"Herein lies the ultimate bearing of Gödel's theorem on physics. It
does not mean at all the end of physics. It means only the death knell on
endeavours that aim at a final theory according to which the physical
world is what it is and cannot be anything else. Gödel's theorem does not
mean that physicists cannot come up with a theory of everything or TOE
in short. They can hit upon a theory which at the moment of its formulation
would give an explanation of all known physical phenomena. But in
terms of Gödel's theorem such a theory cannot be taken for something
which is necessarily true."

I would phrase it somewhat differently.

We can have a TOE, but we can't know it to be true. We will only be able to observe that it seems true.

So the Platonic dream is dead. Maths is not special in that sense, but instead just a practical exercise in modelling, with the limitations on "truth" that are part of modelling.

The universe can still be mathematical (with a small m) because mathematics is the modelling of logical patterns, patterns which for some reason (and here we would get into self-organisation metaphysics) will emerge with high regularity.

Godel should be taken as the death knell of Platonism. But there were already many other reasons for rejecting Platonism already.

A TOE is still a plausible project. Though the requirements are very high - all variable constants would have to emerge out the modelling of the ultimate pattern.

Current approaches like strings and standard models don't even seem close to achieving this. But actually, symmetry breaking as a general story can be seen to be heading in the desired direction.

And even if the goal cannot be achieved, it does appear to proper to be orientated in its direction.

So godel rightfully kills off Platonism, but that still leaves the modelling relations approach as the valid path to knowledge. And a TOE can still stand as its ultimate goal.

Well aim for the stars I suppose. I believe that physics will begin looking more like pure mathematics as time progresses. In fact I would go so far as to say that it will eventually become a division of it. Physicist are limited on what they can observe in the universe. They have the earth, solor system, and then light. The problem is that space is expanding rapidly and they have a limited area of what they can observe. There is a whole lot in that area, but I believe there is likely much more outside of it. Since space is expanding, what we can view is decreasing as time progresses. So eventually people will be forced to explore the universe mathematically.

Hopefully one day mankind will be able to take over evolution enough to greatly increase lifespan. Thus we can travel outside of our play-pen and begin doing some Columbus-style exploring. We may not be able to travel the speed of light, but we can figure out a way to survive the time.

 

[apeiron]

Which conflicts with what I said in what way?

Except you want to oppose maths to physics which is unsophisticated epistemology.

The more useful opposition is between modeller and modeled. Then having accepted there is a modelling relation, between the formal model and its informal measurements.

If you are really interested in the proper implications of Godel for epistemology, there is a considerable literature. It is actually a very interesting subject - too rich for debate to be cut off at a binary Godelian, yes you can/no you can't, level.

Again I would urge you to seek out something like Robert Rosen's Essays on Life Itself if you want to see what came after Godel.

 

[WaveJumper]

You do know that is defined in math as well. Cantor opened that can of worms, as well as many others.

I think you just haven't seen mathematics in this kind of light. Physics has poster children like Einstein and Newton. While in the early days some names appear on both list, they are mostly remembered for work in physics. While great mathematicians are not mentioned at all, or they are just remembered for going crazy.

Example List:
Georg Cantor
Aryabhatta
Kurt Godel
Euclid of Alexandria
Carl F. Gauss
Leonhard Euler
Bernhard Riemann
Henri Poincare
Niels Abel
Evariste Galois

When a lot of mathematicians see the universe, they see numbers. It's one of the reasons some mathematicians go nuts. They get too focused on the numbers, and they don't step back and look at the big picture. You can take any number and find it everywhere.

Maybe some aspects of the universe weren't meant to be discovered. We humans see the universe through a very tiny distorting slit. Anyone who ventures to enhance this tiny slit gets a headache. You get to ask all kinds of questions - what are we?, what is the true nature of reality?, why are there limitations on what we are allowed to know?, why do we see the world the way we do?, why does this orderly mostly electromagntic stuff seem solid?, why does maths describe the universe so well?, etc. etc.

Maybe our logic is flawed and that's the reason we can't comprehend everything. But then what kind of higher logic rules the unexplainable? (Big Bang, infinities, black holes, emergent properties, arrow and the experience of time etc.)

As scientists uncover more aspects about existence and the true nature of reality, lay people would see that the world they perceive is not the world their incredible human drama rests upon. We do create a sort of reality within the wider reality and our senses are anything but a reliable tool to describe reality.

There are no colors in the real world. That there are no textures in the real world. There are no fragrances in the real world. There is no beauty, there is no ugliness. Nothing of the sort. Out there is a chaos of energy soup and energy fields. Literally. We take that and somewhere inside ourselves we create a world. Somewhere inside ourselves it all happens.

All that we can tentatively say that exists is four basic forces: gravity, strong interaction, weak interaction and electromagnetism, that make up everything in the known universe. "Tentatively" because 'exist' is a loaded word, no one knows for sure if there is an objective reality at all. So WTF is the material world then? We are the creators of this world. Literally. The classical world is our creation. It's almost unreal.

So how can we, under the chains of limited and distorted perception, from within the experience, describe the true nature of what we experience? How could we explain ourselves? It seems you either reach a conclusion about some higher power/intelligence behind this or you acknowledge that the universe is unknowable, thus rendering a full TOE unthinkable.

 

[WaveJumper]

Well aim for the stars I suppose. I believe that physics will begin looking more like pure mathematics as time progresses. In fact I would go so far as to say that it will eventually become a division of it. Physicist are limited on what they can observe in the universe. They have the earth, solor system, and then light. The problem is that space is expanding rapidly and they have a limited area of what they can observe. There is a whole lot in that area, but I believe there is likely much more outside of it. Since space is expanding, what we can view is decreasing as time progresses. So eventually people will be forced to explore the universe mathematically.

Einstein and his wife were invited to see the highest power telescope. As the cosmologist(friend of Einstein) was presenting to her the capabilities of the apparatus to observe the far reaches of the universe, she said "My husband uses the envelopes of the letters he receives to do that".

 

[SixNein]

Which conflicts with what I said in what way?

Except you want to oppose maths to physics which is unsophisticated epistemology.

The more useful opposition is between modeller and modeled. Then having accepted there is a modelling relation, between the formal model and its informal measurements.

If you are really interested in the proper implications of Godel for epistemology, there is a considerable literature. It is actually a very interesting subject - too rich for debate to be cut off at a binary Godelian, yes you can/no you can't, level.

Again I would urge you to seek out something like Robert Rosen's Essays on Life Itself if you want to see what came after Godel.

You can argue for a TOE in a "Shoot for the stars" fashion, but you will never obtain it. I don't see how you think physics can escape its foundation. Just a few years ago, Stephen Hawking argued for a TOE. In fact, read his book a brief history of time. However, Hawking is starting to accept reality and more will follow in the coming years. Quite frankly it should have been realized by him and others before implications of black holes.

Philosophically there is plenty of interesting things that can be said of Godel's work. Physicist are religiously holding onto a dream of a TOE even though there is overwhelming mathematical evidence to refute it. Perhaps that shows we are incomplete and have deep desires to find something that will make us whole.

 

[SixNein]

Maybe some aspects of the universe weren't meant to be discovered. We humans see the universe through a very tiny distorting slit. Anyone who ventures to enhance this tiny slit gets a headache. You get to ask all kinds of questions - what are we?, what is the true nature of reality?, why are there limitations on what we are allowed to know?, why do we see the world the way we do?, why does this orderly mostly electromagntic stuff seem solid?, why does maths describe the universe so well?, etc. etc.

Maybe our logic is flawed and that's the reason we can't comprehend everything. But then what kind of higher logic rules the unexplainable? (Big Bang, infinities, black holes, emergent properties, arrow and the experience of time etc.)

As scientists uncover more aspects about existence and the true nature of reality, lay people would see that the world they perceive is not the world their incredible human drama rests upon. We do create a sort of reality within the wider reality and our senses are anything but a reliable tool to describe reality.

There are no colors in the real world. That there are no textures in the real world. There are no fragrances in the real world. There is no beauty, there is no ugliness. Nothing of the sort. Out there is a chaos of energy soup and energy fields. Literally. We take that and somewhere inside ourselves we create a world. Somewhere inside ourselves it all happens.

All that we can tentatively say that exists is four basic forces: gravity, strong interaction, weak interaction and electromagnetism, that make up everything in the known universe. "Tentatively" because 'exist' is a loaded word, no one knows for sure if there is an objective reality at all. So WTF is the material world then? We are the creators of this world. Literally. The classical world is our creation. It's almost unreal.

So how can we, under the chains of limited and distorted perception, from within the experience, describe the true nature of what we experience? How could we explain ourselves? It seems you either reach a conclusion about some higher power/intelligence behind this or you acknowledge that the universe is unknowable, thus rendering a full TOE unthinkable.

That was very well written.

 

[Dmitry67]

Did you even read my post?

And yes it very much applies to physics.

Another Paper:
http://pirate.shu.edu/~jakistan/JakiGodel.pdf

Yes, I read your post and the article.

I repeat, Godel theorem may be or may be not applicable to TOE. You don't know utilyou see the equations.

Regarding "you can not know that it is TOE" - this is always an issue in physics: no experiment can confirm that a theory is TRUE. Experiments can only confirm that a theory is wrong. Even more, the most fundamental theories we have (GR and Standard Model) are well known to be false because they are inconsistent and both break and Planks scale

Finally, Godel (if it is applicable) means that one can not derive all consequences from the TOE equations. Again, it is always the case: can you derive when the economy will be back to normal from the Standard Model?

 

[SixNein]

Yes, I read your post and the article.

I repeat, Godel theorem may be or may be not applicable to TOE. You don't know utilyou see the equations.

Regarding "you can not know that it is TOE" - this is always an issue in physics: no experiment can confirm that a theory is TRUE. Experiments can only confirm that a theory is wrong. Even more, the most fundamental theories we have (GR and Standard Model) are well known to be false because they are inconsistent and both break and Planks scale

Finally, Godel (if it is applicable) means that one can not derive all consequences from the TOE equations. Again, it is always the case: can you derive when the economy will be back to normal from the Standard Model?

The math would have to be extremely trivial and I honestly don't believe that is going to happen. Just look at the math behind a black hole.

The purpose of a TOE is to link and fully explain ALL known physical phenomena. I think you just answered yourself of why that cannot happen. You can take a question out of mathematics like prime numbers, and make it a physical question. Physics is like pure mathematics and is inexhaustible.

 

[Dmitry67]

The purpose of a TOE is to link and fully explain ALL known physical phenomena.

Contrary to its name, Theory of Everything is not a theory of EVERYTHING: it is just a funny name given by physicists, like Higgs boson is called a "God's particle"

It must explain all fundamental experiments, but not all outcomes of all experiments.

As an example, think about the Peano axiomatics. It is a theory of natural numbers, it axioms play the same role in the theory of numbers as TOE equations will play in physics. And still, Peano axioms do not allow to prove or dissaprove ALL statements regarding natural numbers (because of Goedel)

 

[DaveC426913]

Contrary to its name, Theory of Everything is not a theory of EVERYTHING: it is just a funny name given by physicists, like Higgs boson is called a "God's particle"

This is what I'm sayin'. Is this not https://www.physicsforums.com/showpost.php?p=2113879&postcount=8"?


The TOE merely reconciles the 4 fundamental forces, no more.

 

[Gear300]

"A fish cannot comprehend the existence of water. He is too deeply immersed in it."
- Sir Oliver Lodge

How would we know of our limitations when we exist within them?

 

[SixNein]

Contrary to its name, Theory of Everything is not a theory of EVERYTHING: it is just a funny name given by physicists, like Higgs boson is called a "God's particle"

It must explain all fundamental experiments, but not all outcomes of all experiments.

As an example, think about the Peano axiomatics. It is a theory of natural numbers, it axioms play the same role in the theory of numbers as TOE equations will play in physics. And still, Peano axioms do not allow to prove or dissaprove ALL statements regarding natural numbers (because of Goedel)

Let me try to word this differently as this obviously isn't getting across. You could discover a new theory every single day for the next trillion years, and there will be plenty left to discover. Physics is inexhaustible, and any attempts to lay a finite TOE definition down will result in failure. It's not just the TOE that is forced to these rules, but all these physical systems. So how are you going to tie these systems together when you will never fully understand any system? You can't and that is why people like Stephen Hawking is coming across. You will never explain all of the fundamentals experiments with a TOE, ever.