String theory is what?

[lpetrich]

I have never heard of the cosmon. It is fortunate that we may be able to explain fine-tuning.

"Cosmon" is a name for an elementary particle of "quintessence", a dynamical version of "dark energy".

The "tracking" of cosmon/quintessence theories: their mass/energy density is roughly proportional to the Universe's mass-energy density while it is radiation-dominated (pressure ~ (1/3)*density), but varies much more slowly when the Universe becomes matter-dominated (pressure << density). -- Quintessence (physics) - Wikipedia

Particle physicists and cosmologists have an aversion to fine tuning -- they prefer to construct hypotheses that avoid it.

Inflationary cosmology is motivated by, among other things, the "flatness problem", in which the early Universe's kinetic and potential energies must have been VERY fine-tuned to expand to the size it has while having a density close to its closure density. Inflation provides a solution to this problem that is free from fine tuning: the Universe got flattened out by a phase of exponential expansion.

[Nautilidae]

I have never heard of the cosmon. It is fortunate that we may be able to explain fine-tuning.

"Cosmon" is a name for an elementary particle of "quintessence", a dynamical version of "dark energy".

The "tracking" of cosmon/quintessence theories: their mass/energy density is roughly proportional to the Universe's mass-energy density while it is radiation-dominated (pressure ~ (1/3)*density), but varies much more slowly when the Universe becomes matter-dominated (pressure << density). -- Quintessence (physics) - Wikipedia

Particle physicists and cosmologists have an aversion to fine tuning -- they prefer to construct hypotheses that avoid it.

Inflationary cosmology is motivated by, among other things, the "flatness problem", in which the early Universe's kinetic and potential energies must have been VERY fine-tuned to expand to the size it has while having a density close to its closure density. Inflation provides a solution to this problem that is free from fine tuning: the Universe got flattened out by a phase of exponential expansion.

I am familiar with quintessence, but I didn't know that there was a particle associated with it. Thank you.

[lpetrich]

Looking in arxiv.org, the term "cosmon" isn't used that much.

cosmon: 21 papers
quintessence: >1000 papers
dark energy: >1000 papers
(arxiv.org has a limit of 1000 papers in its searches)

That aside, the dimensionality of space-time is an interesting puzzle in itself. Why do we have 3+1 dimensions of space-time?

It must be pointed out that it is convenient for us in some ways.

A time dimension can be defined as a dimension that classical-limit objects prefer to travel along in space-time. They can be stationary in space, but not in time. Our universe has only one time dimension, and that imposes a direction of time. More than one time dimension would allow objects to reverse direction in time.

Turning to space dimensions, they are limited by what allows complexity to form. Stable closed orbits are possible for space dimensions up to 3, while for 4 space dimensions, they become borderline unstable, and for more than 4, very definitely unstable. This conclusion also holds in quantum mechanics, with 4 spatial dimensions having no bounded wavefunctions.

It may be hard to get much complexity in 1 or 2 spatial dimensions, though I may not have enough imagination.


String theory + multiverses may have a solution. There could be numerous "bubble Universes", each with its own topology, and thus, with its own low-energy limit. Some could have no large space-time dimensions, or 2 or 4 or 6 or 8 or even 10. We could be living in one of the few universes that allow sentient entities to come into existence inside of it. This "natural selection of universes" is analogous to the natural selection of environments that happens on a smaller scale. We live on the Earth and not on any other Solar System object, because only the Earth allows us to live on it and come into existence on it.

[The Dagda]

Looking in arxiv.org, the term "cosmon" isn't used that much.

cosmon: 21 papers
quintessence: >1000 papers
dark energy: >1000 papers
(arxiv.org has a limit of 1000 papers in its searches)

That aside, the dimensionality of space-time is an interesting puzzle in itself. Why do we have 3+1 dimensions of space-time?

It must be pointed out that it is convenient for us in some ways.

A time dimension can be defined as a dimension that classical-limit objects prefer to travel along in space-time. They can be stationary in space, but not in time. Our universe has only one time dimension, and that imposes a direction of time. More than one time dimension would allow objects to reverse direction in time.

Turning to space dimensions, they are limited by what allows complexity to form. Stable closed orbits are possible for space dimensions up to 3, while for 4 space dimensions, they become borderline unstable, and for more than 4, very definitely unstable. This conclusion also holds in quantum mechanics, with 4 spatial dimensions having no bounded wavefunctions.

It may be hard to get much complexity in 1 or 2 spatial dimensions, though I may not have enough imagination.


String theory + multiverses may have a solution. There could be numerous "bubble Universes", each with its own topology, and thus, with its own low-energy limit. Some could have no large space-time dimensions, or 2 or 4 or 6 or 8 or even 10. We could be living in one of the few universes that allow sentient entities to come into existence inside of it. This "natural selection of universes" is analogous to the natural selection of environments that happens on a smaller scale. We live on the Earth and not on any other Solar System object, because only the Earth allows us to live on it and come into existence on it.

This is just arm waving.

And oh...

http://mypicturesandsht.webs.com/Soldie ... ps.com.wav

The army of Voodoo Science marches on along regardless.

Thought police anyone?

Manbearpig is real I'm super cereal!



Prove it before the Nobel Prize committee then.

[Tigger]

[Nautilidae]

This is just arm waving.

And oh...

http://mypicturesandsht.webs.com/Soldie ... ps.com.wav

The army of Voodoo Science marches on along regardless.

Thought police anyone?

Manbearpig is real I'm super cereal!



Prove it before the Nobel Prize committee then.

How on Earth is anything that was said arm-waving?

[The Dagda]

This is just arm waving.

And oh...

http://mypicturesandsht.webs.com/Soldie ... ps.com.wav

The army of Voodoo Science marches on along regardless.

Thought police anyone?

Manbearpig is real I'm super cereal!



Prove it before the Nobel Prize committee then.

How on Earth is anything that was said arm-waving?

How many dimensions are there? Can you show me the 5th dimension.

That's unfair actually because global warming is real but curled up dimensions are atm a fairy tale.

[Nautilidae]

How many dimensions are there? Can you show me the 5th dimension.

That's unfair actually because global warming is real but curled up dimensions are atm a fairy tale.

We've shown you multiple times that curled up dimensions can be tested. This is just another example of YOUR arm-waving.

[The Dagda]

How many dimensions are there? Can you show me the 5th dimension.

That's unfair actually because global warming is real but curled up dimensions are atm a fairy tale.

We've shown you multiple times that curled up dimensions can be tested. This is just another example of YOUR arm-waving.

No you haven't you've shown me that some people believe that, mainstream does not. What Nobel prizes has String Theory got, and what experiment would prove it. I ask again because you seem unable to understand the difference between opinion and peer review. You might learn that science is about peer review not opinion, and peer review doesn't come from some repetition of I am right and you are wrong or Einstein would of got nowhere.

Sadly you are programmed by pop science to believe you are right and the mainstream is wrong, that's your problem, not mine. You've been shown time and time and time again that few people outside of String theory accept it and yet you persist in denying peer review as valid. You're losing badly to the scientific method until you do. Talk is cheap, evidence is king as is actual realisable predictions not some fairy tale, not some excuse based nonsense. Feynman eats you alive with his scientific integrity and that eats you up inside. And it always will until you stop making excuses and start doing science, you are liars and frauds. Snake oil Salesmen.

Don't worry String Theorists don't do peer review unless it is peer review by the devoted. Now that you have no more means to get me banned, how about you answer the questions? why is you opinion better than the best minds of the 20/21st century? Why? Why seriously why? What have you got really except talk?

[JimC]

The Dagda wrote:

...And it always will until you stop making excuses and start doing science, you are liars and frauds...

I thought by now you would have known the line you don't cross here. Formal warning of impending suspension for any repetion.

[The Dagda]

The Dagda wrote:

...And it always will until you stop making excuses and start doing science, you are liars and frauds...

I thought by now you would have known the line you don't cross here. Formal warning of impending suspension for any repetion.

Oh shut up you are a mod we don't respect you and we never will. You are taking up space for better people who have some passion and integrity.

Impending ban, your mother was a warthog and your father smelled of elder berries, we all know why you are here to be a self righteous prig and a numpty who lives in the past. Get with the times grandpa.

Banned again I so love taking the piss out of people like this you know they are a waste of space, why do you put up with bad moderators? Honestly there just worthless middle management types with no real life experience?

You treat me like a child I will behave like one for shits and giggles, until you stop it. Fuck you and the horse you rode in on.

Yeah and I am incorrigible you still haven't replied to my emails, you have no respect for your posters, and they have no respect for you. What goes around comes around, ban like I give a fuck.

And do you know what's sad I would of moderated my behaviour if it wasn't for the fact that there's is worse than mine. You have the diplomacy skills of a dead animal. You smell just as foul as that.

So go on hold your high council of morons, I couldn't give one flying fuck for you or people like you. And neither can anyone else, they just pretend to, because when they get off work, they want not to be subject to the same moronic crap that happens in the real world, by the same moronic idiots that make the real world as bad as it is.

Run coward run to your ban hammer I've got your number.

[Gawdzilla Sama]

Bye-bye.

[The Dagda]

Bye-bye.

Wanker.

Reply to my emails you cunt.

[Nautilidae]

No you haven't you've shown me that some people believe that, mainstream does not. What Nobel prizes has String Theory got, and what experiment would prove it. I ask again because you seem unable to understand the difference between opinion and peer review. You might learn that science is about peer review not opinion, and peer review doesn't come from some repetition of I am right and you are wrong or Einstein would of got nowhere.

Sadly you are programmed by pop science to believe you are right and the mainstream is wrong, that's your problem, not mine. You've been shown time and time and time again that few people outside of String theory accept it and yet you persist in denying peer review as valid. You're losing badly to the scientific method until you do. Talk is cheap, evidence is king as is actual realisable predictions not some fairy tale, not some excuse based nonsense. Feynman eats you alive with his scientific integrity and that eats you up inside. And it always will until you stop making excuses and start doing science, you are liars and frauds. Snake oil Salesmen.

Don't worry String Theorists don't do peer review unless it is peer review by the devoted. Now that you have no more means to get me banned, how about you answer the questions? why is you opinion better than the best minds of the 20/21st century? Why? Why seriously why? What have you got really except talk?

I've shown you several peer-reviewed articles, Dadga. The amount of arm-waving in this post is phenomenal.

I've shown you several mainstream scientists, peer-reviewed articles, and scientific experiments that would satisfy someone that wasn't arm-waving. You continue to dismiss any relevant evidence someone might give. This is arm-waving.

The Dagda wrote:

...And it always will until you stop making excuses and start doing science, you are liars and frauds...

I thought by now you would have known the line you don't cross here. Formal warning of impending suspension for any repetion.

Oh shut up you are a mod we don't respect you and we never will. You are taking up space for better people who have some passion and integrity.

Impending ban, your mother was a warthog and your father smelled of elder berries, we all know why you are here to be a self righteous prig and a numpty who lives in the past. Get with the times grandpa.

Banned again I so love taking the piss out of people like this you know they are a waste of space, why do you put up with bad moderators? Honestly there just worthless middle management types with no real life experience?

You treat me like a child I will behave like one for shits and giggles, until you stop it. Fuck you and the horse you rode in on.

YEah and I am incorrigable you still haven't replied to my emails, you have no respect for your posters, and they have no respect for you. What goes around comes around, ban like I give a fuck.

You know, it does nothing but satisfy us greatly when you are banned. I thought that you should know that.

Bye-bye.

Wanker.

Reply to my emails you cunt.

[JimC]

The Dagda is suspended for 1 week.