Great episode, thanks for the jargon explainers. One of the most instructive parts was the case for refocusing popular attention on actual central issues from the perspective of people working in QFT & String Theory. That deserves a dedicated video by someone by itself.
Great podcast although i have only listened half of it i think u should make a video about string theory and its misconceptions itself since a lot of people arent aware of this
@@Phymaths Thank you for the reply. I cannot wait to watch your Abdus Salam video. I'm going to Imperial College London right now so I am very proud of him, in fact recently our library was renamed the Abdus Salam library!
Not sure if this make sense because I was playing with this in a graphics program but around 1h10 min in the conversation, the laplacian value in my case is manually added or hand written if you wish. Means you can give a curvature value 1, but it seems to me the 2 not strongly correlated until certain threshold. When you increase the laplacian you get smooth expansion, corresponding to cosmological constant, but after certain value, the gauge is breaking or splitting into schwinger pairs. I have renders of this with various parameters so you get different results. What is intriguing is that also shows that glabal symmetry is emergent, if there is no deformation it always cancel or annihilate, but with deformation, you realise global symmetry, mass for the string from tension, also your no longer annihilate. In other words seems like with degeneracy the universe emerges literally with all important consequences all at once. Without deformation there is no mass energy, nor energy conservation
If you want to put this what I wrote in phenomenology, supernovae occur exactly from this mechanism, the deformation cause symmetry breaking but it's a local phenomenon and impact different moments in spacetime without seemingly any correlation
Wonderful, try to arrange a video on quantum gravity,superstrings and blackholes with dr atish dabolkhar the director of icpt ,and if possible with Edward witteen also.
Hey great video, i had a question. You guys discussed how even if our current universe cannot be described by string theory, the study of string theory can still be very useful and provide valuable insights on the structure of what quantum gravity should look like. My question is do you think these same benefits arise from the study of other approaches such as Loop quantum gravity assuming our universe cannot be described by it. My second question is, while its obvious we dont have the technology to design experiments at these very high energy scales, what astrophysical discoveries that will be possible in the next few decades, with the new missions, will most contribute and help in formulating of fundamental theory.
Thanks. Glad that you liked it. Let me answer your second question first. I think a very promising observation is the observation of cosmic strings. You can also watch the short below where Joe Conlon is talking about it on my podcast. Short: th-cam.com/users/shortsyLefqCT6Y3M?feature=share Let me come to your first question now. As we discussed in the video, since string theory is not just quantum gravity, but a possible theory of all known forces, it allows us to understand how a given QFT can couple with gravity. This is something that a theory which is just a theory of quantum gravity can't do. The swampland program has come out of string theory and does exactly this thing i.e. tries to understand which QFTs can couple with gravity.
Great podcast and all but while I stumble upon 1 video addressing the criticism of string theory every few months, very popular figures who are critics of String Theory are out there regularly making videos, appearing on podcasts criticizing String Theory, making the same bad arguments over and over. To overcome this problem there is a lot more work to do to correctly inform the public about String Theory.
String theory is not a theory of physics but a theory of consciousness - an idealism based on Yogacara Buddhism (YB). String theory bears a number of water marks that are outlined in YB. - M-theory is 8th Consciousness - F-theory is 7th Consciousness - First 6 Consciousness come in 5 Effects - which are the 5 superstrings - Of the 5 above, the most important is Type IIB as this is the existential basis (there are many string math start with Type IIB. - (the 2 heterotic strings which contain bosonic strings with 22 extra dimensions are 2 of 5 Effects which have 22 Indriyas) - Each conscious being has a set of the above and as there are infinite conscious beings - there are infinitely many sets of the above. Hence parallel universes with infinitely many M-theory+F-theroy+5 Superstrings. - Current science thinks that consciousness comes from the brains but according to YB consciousness arises from the above 3-fold transformation: 8 - 7 - 1st 6. - In YB, there is nothing outside of our consciousness as there are all Image Functions which are the branes and strings on brains. - In YB, when a seeds (string) is activated it arise as consciousness with Visual & Image Functions (branes and strings on branes) . All our experiences are all within these Visual and Image Functions. - In YB, there is really no inside / outside - inner body and external worlds, but when consciousness arises, it project images of inner body and external world. This is in AdS/CFT. - AdS with Type IIB is the inner physical body - CFT with quantum theories are the external world - There is a concept of 3 realms - we as human are in the contracting world, the form beings which are planets, stars, nebulae, and black holes are in the constant world, with the formless beings in the expanding world. - Solution to cosmological constant should take the weighted averages of the above where there are many M-theory/F-theory/Superstrings - each with different vacua. - Black holes are 4th Jhana form beings. The following video explain with details: th-cam.com/video/SRIqb18cR_M/w-d-xo.html
A flaw in the thinking is strings are not particles, strings only represent particles when dormant. When strings are Causes which when activated become Effect or Phenomena. Therefore, string representing graviton is not gravity, only when string representing gravition become activated then gravity is felt. That's why we might never find graviton even string theory has gotten in for more than 50 years. Strings are like computer codes, when the computer codes are executed, then there are all experiences on the screen, speakers, and etc. Strings which are Causes and the Effects or Phenomena are neither the same nor different - just like the computer codes and the experiences are neither the same nor different.
Good discussion, though I find Van Riet a bit strained, logically, in his apologetics for string theory. BTW - nobody of any depth in solid state physics ever thought that "the Ising model explained magnets," because it was never intended to - it explains a phase transition, which is a very different matter. Perhaps we could have a new field called "experimental applied mathematics" for these "virtual physicists" who glory in derived mathematical insights so that string theorists and cosmologists are not so often confused and defensive about what they are actually doing. Penfold has a different viewpoint because he has a genuine physicist's humility tempered by experimental reality (which is far, far more complex than string theory).
No you were hoping it was Gravity, but there is no such thing, and I believe this is why your not getting your desired results. Weighted mass in an atmosphere environment.
No Gravity whatsoever anywhere. Peace ✌️. So far he has said nothing that has made much sense. Talk in circles. Super symmetry where is it why hasn't it been found. Why such high energy, perhaps just a consistent energy over a period is sufficient amount. Accumulation.
Great episode, thanks for the jargon explainers.
One of the most instructive parts was the case for refocusing popular attention on actual central issues from the perspective of people working in QFT & String Theory. That deserves a dedicated video by someone by itself.
Thanks. Also, this is a good video idea. 👍
Great podcast although i have only listened half of it i think u should make a video about string theory and its misconceptions itself since a lot of people arent aware of this
Absolutely loved listening to this conversation
Glad to know that you liked it.
I would love a dedicated video or podcast on the contribution or relationship to pure mathematics by string theory
Can make a video like this in the future. Lets see. Thanks for the suggestion.
@@Phymaths Thank you for the reply. I cannot wait to watch your Abdus Salam video. I'm going to Imperial College London right now so I am very proud of him, in fact recently our library was renamed the Abdus Salam library!
@bluemonstrosity259 Yes, that library was recently named after Salam. That's cool. Best wishes for your studies. I hope the Salam video comes soon
@@Phymaths thank you for your kind words
Not sure if this make sense because I was playing with this in a graphics program but around 1h10 min in the conversation, the laplacian value in my case is manually added or hand written if you wish. Means you can give a curvature value 1, but it seems to me the 2 not strongly correlated until certain threshold. When you increase the laplacian you get smooth expansion, corresponding to cosmological constant, but after certain value, the gauge is breaking or splitting into schwinger pairs. I have renders of this with various parameters so you get different results. What is intriguing is that also shows that glabal symmetry is emergent, if there is no deformation it always cancel or annihilate, but with deformation, you realise global symmetry, mass for the string from tension, also your no longer annihilate. In other words seems like with degeneracy the universe emerges literally with all important consequences all at once. Without deformation there is no mass energy, nor energy conservation
If you want to put this what I wrote in phenomenology, supernovae occur exactly from this mechanism, the deformation cause symmetry breaking but it's a local phenomenon and impact different moments in spacetime without seemingly any correlation
Wonderful, try to arrange a video on quantum gravity,superstrings and blackholes with dr atish dabolkhar the director of icpt ,and if possible with Edward witteen also.
Hey great video, i had a question.
You guys discussed how even if our current universe cannot be described by string theory, the study of string theory can still be very useful and provide valuable insights on the structure of what quantum gravity should look like. My question is do you think these same benefits arise from the study of other approaches such as Loop quantum gravity assuming our universe cannot be described by it.
My second question is, while its obvious we dont have the technology to design experiments at these very high energy scales, what astrophysical discoveries that will be possible in the next few decades, with the new missions, will most contribute and help in formulating of fundamental theory.
Thanks. Glad that you liked it.
Let me answer your second question first. I think a very promising observation is the observation of cosmic strings. You can also watch the short below where Joe Conlon is talking about it on my podcast.
Short: th-cam.com/users/shortsyLefqCT6Y3M?feature=share
Let me come to your first question now. As we discussed in the video, since string theory is not just quantum gravity, but a possible theory of all known forces, it allows us to understand how a given QFT can couple with gravity. This is something that a theory which is just a theory of quantum gravity can't do. The swampland program has come out of string theory and does exactly this thing i.e. tries to understand which QFTs can couple with gravity.
Excellent discussion
Thanks
Great podcast and all but while I stumble upon 1 video addressing the criticism of string theory every few months, very popular figures who are critics of String Theory are out there regularly making videos, appearing on podcasts criticizing String Theory, making the same bad arguments over and over.
To overcome this problem there is a lot more work to do to correctly inform the public about String Theory.
I agree. This is what we discussed in this podcast as well. This is a pressing problem that needs to be solved.
Yeah, I realized that a few minutes after I posted my comment as I still have not finished listening it 😅
I see. No worries
String theory is not a theory of physics but a theory of consciousness - an idealism based on Yogacara Buddhism (YB). String theory bears a number of water marks that are outlined in YB.
- M-theory is 8th Consciousness
- F-theory is 7th Consciousness
- First 6 Consciousness come in 5 Effects - which are the 5 superstrings
- Of the 5 above, the most important is Type IIB as this is the existential basis (there are many string math start with Type IIB.
- (the 2 heterotic strings which contain bosonic strings with 22 extra dimensions are 2 of 5 Effects which have 22 Indriyas)
- Each conscious being has a set of the above and as there are infinite conscious beings - there are infinitely many sets of the above. Hence parallel universes with infinitely many M-theory+F-theroy+5 Superstrings.
- Current science thinks that consciousness comes from the brains but according to YB consciousness arises from the above 3-fold transformation: 8 - 7 - 1st 6.
- In YB, there is nothing outside of our consciousness as there are all Image Functions which are the branes and strings on brains.
- In YB, when a seeds (string) is activated it arise as consciousness with Visual & Image Functions (branes and strings on branes) . All our experiences are all within these Visual and Image Functions.
- In YB, there is really no inside / outside - inner body and external worlds, but when consciousness arises, it project images of inner body and external world. This is in AdS/CFT.
- AdS with Type IIB is the inner physical body
- CFT with quantum theories are the external world
- There is a concept of 3 realms - we as human are in the contracting world, the form beings which are planets, stars, nebulae, and black holes are in the constant world, with the formless beings in the expanding world.
- Solution to cosmological constant should take the weighted averages of the above where there are many M-theory/F-theory/Superstrings - each with different vacua.
- Black holes are 4th Jhana form beings.
The following video explain with details:
th-cam.com/video/SRIqb18cR_M/w-d-xo.html
A flaw in the thinking is strings are not particles, strings only represent particles when dormant. When strings are Causes which when activated become Effect or Phenomena. Therefore, string representing graviton is not gravity, only when string representing gravition become activated then gravity is felt. That's why we might never find graviton even string theory has gotten in for more than 50 years.
Strings are like computer codes, when the computer codes are executed, then there are all experiences on the screen, speakers, and etc.
Strings which are Causes and the Effects or Phenomena are neither the same nor different - just like the computer codes and the experiences are neither the same nor different.
I am still baffled how nobody try to bring Xiao Gang Wen on this topic, he could add valuable insights
Great video.
Good discussion, though I find Van Riet a bit strained, logically, in his apologetics for string theory. BTW - nobody of any depth in solid state physics ever thought that "the Ising model explained magnets," because it was never intended to - it explains a phase transition, which is a very different matter. Perhaps we could have a new field called "experimental applied mathematics" for these "virtual physicists" who glory in derived mathematical insights so that string theorists and cosmologists are not so often confused and defensive about what they are actually doing. Penfold has a different viewpoint because he has a genuine physicist's humility tempered by experimental reality (which is far, far more complex than string theory).
SEE: Q.FFF THEORY a constructive string theory based on only one transformer macaroni ring..with three hinges to transform.
No you were hoping it was Gravity, but there is no such thing, and I believe this is why your not getting your desired results. Weighted mass in an atmosphere environment.
Man, sorry to disappoint you, but everybody knows that String Theory is BS 😂😂😂😂
No Gravity whatsoever anywhere. Peace ✌️. So far he has said nothing that has made much sense. Talk in circles. Super symmetry where is it why hasn't it been found. Why such high energy, perhaps just a consistent energy over a period is sufficient amount. Accumulation.
Not sure what pill you taking but gravity is real. Although you can think of it as a memory of a system deformation corresponding to curvature
@@JAYMOAP space doesn't curve it doesn't need too. The red pill
@@JAYMOAP it's a description of the system at work description. It's not what's actually occurring. Snooze ya loose
@@alex79suited think of a system mate, space is not nothing
@@alex79suited you right, whatever it is 👌👍