Thank goodness there are a few people like Subir Sarkar and Sabine Hossenfelder around. Particle physics and cosmology have adopted almost a religious approach the last few decades.
Excellent presentation. Lots of food for thought here. I love his clarity of expression and ability to make these immensely tricky problems understandable for people like me.
I really enjoy listening to this man talk. He's so brilliantly eloquent. I suggest you watch his video with Sabine Hossenfelder where they go deeper on this topic
Refresshing. Dr Sarkar and Sir Roger Penrose reminds me of old school scientists. Clarity and logic and great insights. Yes, I am looking at you String Theorists and Multiverse fanatics.
This is particularly glaring when she doesn't grasp the obvious meaning of special as "pertaining to a particular case" rather that "intrinsically unique". It was inappropriate to assign her to the interview...why not just an astrophysics postdoc with a keen awareness of what the general public doesn't know?
Because he says throw the textbooks away and "everything you know is wrong." Or if not flat out wrong, then at least seriously outdated and based on models idealized out of necessity due to then-valid lack of information.
I agree with you that the acceleration of the universe is caused by the motion of our Local Cluster relative to other clusters in the universe. I thought that JWT could also do real time astronomy!
Its true that I stated hearsay; retold what someone else said Einstein stated to him. So I didn't lie and I was told this in 2001, in an online math group discussion regarding Mercury's shifting precession. His comment would led me to look at and understand the consequence of lost momentum.... also (2001) it was before this dark enrgy and dark matter business, so its influence free and he had no reason to lie. However, your reference is somewhat a lie.
Any body here listen to Nassim Harimian some i heard speaking over ten years ago explaining the the expansion of the universe I am no intellectual or a person who has great knowledge however if it interests me I will listen and i did 10 years ago and was enlightened to this theory you are discussing here and I don't how i got here but i did so whilst here I will share my 2 penny's worth and that is check out Nassim Harimian
We can use a critical thinker like Subir. Wish There were more. With respect to dark energy we need to re examine its need. We must be very carefull interpretating the observeren red shift in light outside of our galaxy. The more direct Answer is than we are whitnessing na inversed arrow of time , relative to the confined area inside our galaxy. Meaning the redshift is actually A blueshift meaning we are contracting at the cosmic scala. …
Gives to think that the strings them selves - their dynamics create the space time - admits the strings move but that has proved to ambitious a constraction , so currently all of string theory formulated in a flat-space time background. He say is to difficult to this stage. - No body really even knows what string realy are or something like that New ways to see at things. - There are benefets and are good, costs money but is worthy it to me.
Are you allowed to have Internet at the asylum? Or did you stole it from the doctors office? Take your medication and go to sleep. “My works...” omg what a clown.
What I am not convinced about is the choice of Maximum likelihood method that he mentions about while referring to the statistical analysis. In other words, he is totally trying to ignore the Bayesian paradigm, just because there is abundance of data. when the experimental data from the large telescope at Chile becomes available and people start moving towards real-time cosmological inference, then Bayesian inference will eventually become indispensable.
He criticize bayesian analysis because bayesian statistics is useful for stimates parameters whrn you now exactly the true model, but is not useful for compare 2 models. Thats why we need to return to frecuentist analysis with a lot of dat, i hope machine learning help us i this tasj
As Chinosupay states, you cannot apply Bayesian paradigm if you assume the cosmological model. They fit the data to a model they've never proved. You can do that with any arbitrary model. And it turns out the isotropic homogenous model is not correct because our observations are skewed based on the direction of us moving in the CMB.
In saaMkhya philosophy, the string (= guNa) theory seems rather simple: sattva (prakaasha) = light; rajas (kriyaa) = action(?); tamas (sthiti) = inertia... ; )
Halton Arp already proved it isn't expanding.. he was ostracised for it, but red/blue shift doesn't hold up to scrutiny. Wal Thornhill and the Thunderbolts Project can help you with proof/facts.
Yes, apparently the statistics used to disprove Arp were fudged. But those were on quasars, not supernovas. What i understand here, is that wrong data on supernova were used to prove acceleration of the expansion. Mr Sarkar is observation_fact based, That is a breath of fresh air in Cosmology for sure. Thunderbolts Project: Taking on board the idea that Saturn once was our sun, may be a bridge too far for him. But perhaps the idea that the universe or the part we find ourselves in, is a donut (torus) could help explain different speeds and movements in different directions. Douglas Vogt, Diehold foundation.Based on ancient Hebrew texts afaik.
@@hammerstrumm In my work Saturn is earth pair and represents orange color while earth is blue. and as my work suggests if a color is taken or changed then the system would just fall. - The TORUS way to move energy as it looks is that northenergy flows north to south and viceverse, in other words south may go all the way down to north and south goes all the way to north, my work suggests that that cant hapen or be, north represents gaseous and south are rocky ones so both cant mix cause mass follows atomic weight same as light and you will never see the rainbow in another order from lighter down is red, orange, yellow, green, blue and violet where this 6 united they form or make white, white is the union of the six. For more info click my logo to check it.
It flows like the sea and has tides why do you think they call space vehicles space ships. Dust flows,Dark matter flows, behind it all is resonance or a soundscape they all work in harmony otherwise you talking and me watching isn’t happening
If the universe has 7 levels of density how can it be the same temperature in them as light comes in and gets out and ones again, the more compact matter is in the white color, then up is violet, blue, green, yellow, orange, for last up is red, you might say there are not violet or green lights but for sure the steps in wave length are there, something is tricking as to see them The universe cant be isotropic.
It does not , far from it. If someone was to challange big bang he d pretty much have challange origin of cosmic microwave background - cmb If anything it questions flatness of the universe
@John Doe The expansion is intrinsic not extrinsic. That means the spacetime metric expands with time. It does not mean that space is expanding in a higher dimensional space like a balloon. So the distance between two objects gets bigger without a relative motion of the objects itself. For a mathematical precise model of a spacetime expanding without a higher dimensional space to expand into see the _Friedmann-Lemaître-Robertson-Walker metric._
@@kundakaps yes this is probably possible, because the conservation of energy is only tied to specific symmetries. The theory of general relativity leaves open the question of whether there is a conservation of energy for the ENTIRE UNIVERSE.
We can't say the universe is infinite but I agree with the view that it isn't expanding. The inflationary model makes no sense at all and doesn't fit the data. It's predictions aren't found...time to scrap it.
There is a problem with this logic , problem being is at this moment it is though thta t universe is ~90billion light years across . So this is where we expect to see particles. Beyonde that we do not know and most likely will never know. To go beyonde to measure if space exists there, as if it was possible, is ruined by the fact that we are there to measure it. We d need non physical way to measure it which means it can only be solved in theory which means you can not say its true with 100% certanty. Id still give it 1% tho , do not like it being impossible 😅
Such clarity and depth ! Kudos Professor Sarkar.
Thank goodness there are a few people like Subir Sarkar and Sabine Hossenfelder around. Particle physics and cosmology have adopted almost a religious approach the last few decades.
@Edward Armstrong My evidence? The claptrap like string theory that goes nowhere but generates thousands of papers.
@Edward Armstrong By any chance are you one of the guys trying to get a PhD by proposing another unfalsifiable model for string theory?
Excellent presentation. Lots of food for thought here. I love his clarity of expression and ability to make these immensely tricky problems understandable for people like me.
Came here after Sabine Hossenfelder’s recent video. Excellent interview, thanks.
Me too!
I really enjoy listening to this man talk. He's so brilliantly eloquent. I suggest you watch his video with Sabine Hossenfelder where they go deeper on this topic
Subir Sarkar is fantastic
Refresshing. Dr Sarkar and Sir Roger Penrose reminds me of old school scientists. Clarity and logic and great insights. Yes, I am looking at you String Theorists and Multiverse fanatics.
Very good interview. Thank you.
Ya, I was expecting another usual video but it surprised. Good idea for the experiment.
Wow. What a fascinating man with a mindset as simple as true.
I’d love to sit down with this man
You’d think IAI could get someone to ask questions who understands what he’s talking about? Unreal
This is particularly glaring when she doesn't grasp the obvious meaning of special as "pertaining to a particular case" rather that "intrinsically unique". It was inappropriate to assign her to the interview...why not just an astrophysics postdoc with a keen awareness of what the general public doesn't know?
Superb.
Excellent, simply excellent.
Brave to stand apart and say it is not scientific :-) Really enjoy this contrarian view expressed so clearly!
Very beautiful thoughts expounded by a great man. Thanks prof sarkar
Why we don't see him on BBC documentaries?
because he doesn't use stupid analogies
Because he says throw the textbooks away and "everything you know is wrong." Or if not flat out wrong, then at least seriously outdated and based on models idealized out of necessity due to then-valid lack of information.
Because the funding world is hella corrupted
Because he will steer people in the right direction, and that doesn't make money
If neutrinos have wave particle duality on the scale of cellular machinery then there is a channel for these entities to be conscious of each other.
I agree with you that the acceleration of the universe is caused by the motion of our Local Cluster relative to other clusters in the universe. I thought that JWT could also do real time astronomy!
Thank you.
Can the Nobel Prize committee demand their medals back, as I feel that should be happening with those that came up with the Dark Energy theory?
It was a valuable theoretical contribution at the time, before certain astronomical findings were available.
That guy is exciting.
Its true that I stated hearsay; retold what someone else said Einstein stated to him. So I didn't lie and I was told this in 2001, in an online math group discussion regarding Mercury's shifting precession. His comment would led me to look at and understand the consequence of lost momentum.... also (2001) it was before this dark enrgy and dark matter business, so its influence free and he had no reason to lie. However, your reference is somewhat a lie.
Any body here listen to Nassim Harimian some i heard speaking over ten years ago explaining the the expansion of the universe I am no intellectual or a person who has great knowledge however if it interests me I will listen and i did 10 years ago and was enlightened to this theory you are discussing here and I don't how i got here but i did so whilst here I will share my 2 penny's worth and that is check out Nassim Harimian
Nassim Harimian is a metaphysic man, he speaks or relates spitrits and physics.
We can use a critical thinker like Subir. Wish There were more. With respect to dark energy we need to re examine its need. We must be very carefull interpretating the observeren red shift in light outside of our galaxy. The more direct Answer is than we are whitnessing na inversed arrow of time , relative to the confined area inside our galaxy. Meaning the redshift is actually A blueshift meaning we are contracting at the cosmic scala. …
Gives to think that the strings them selves - their dynamics create the space time - admits the strings move but that has proved to ambitious a constraction , so currently all of string theory formulated in a flat-space time background.
He say is to difficult to this stage. - No body really even knows what string realy are or something like that
New ways to see at things. - There are benefets and are good, costs money but is worthy it to me.
Are you allowed to have Internet at the asylum? Or did you stole it from the doctors office? Take your medication and go to sleep. “My works...” omg what a clown.
What I am not convinced about is the choice of Maximum likelihood method that he mentions about while referring to the statistical analysis. In other words, he is totally trying to ignore the Bayesian paradigm, just because there is abundance of data. when the experimental data from the large telescope at Chile becomes available and people start moving towards real-time cosmological inference, then Bayesian inference will eventually become indispensable.
He criticize bayesian analysis because bayesian statistics is useful for stimates parameters whrn you now exactly the true model, but is not useful for compare 2 models. Thats why we need to return to frecuentist analysis with a lot of dat, i hope machine learning help us i this tasj
As Chinosupay states, you cannot apply Bayesian paradigm if you assume the cosmological model. They fit the data to a model they've never proved. You can do that with any arbitrary model. And it turns out the isotropic homogenous model is not correct because our observations are skewed based on the direction of us moving in the CMB.
In saaMkhya philosophy, the string (= guNa) theory seems rather simple: sattva (prakaasha) = light; rajas (kriyaa) = action(?); tamas (sthiti) = inertia... ; )
Why do you bring religion/philosophy into everything ??? (and anyway string is NOT equal to "guna")
Halton Arp already proved it isn't expanding.. he was ostracised for it, but red/blue shift doesn't hold up to scrutiny. Wal Thornhill and the Thunderbolts Project can help you with proof/facts.
Yes, apparently the statistics used to disprove Arp were fudged.
But those were on quasars, not supernovas. What i understand here, is that wrong data on supernova were used to prove acceleration of the expansion.
Mr Sarkar is observation_fact based, That is a breath of fresh air in Cosmology for sure.
Thunderbolts Project:
Taking on board the idea that Saturn once was our sun, may be a bridge too far for him.
But perhaps the idea that the universe or the part we find ourselves in, is a donut (torus) could help explain different speeds and movements in different directions.
Douglas Vogt, Diehold foundation.Based on ancient Hebrew texts afaik.
@@hammerstrumm In my work Saturn is earth pair and represents orange color while earth is blue. and as my work suggests if a color is taken or changed then the system would just fall. - The TORUS way to move energy as it looks is that northenergy flows north to south and viceverse, in other words south may go all the way down to north and south goes all the way to north, my work suggests that that cant hapen or be, north represents gaseous and south are rocky ones so both cant mix cause mass follows atomic weight same as light and you will never see the rainbow in another order from lighter down is red, orange, yellow, green, blue and violet where this 6 united they form or make white, white is the union of the six.
For more info click my logo to check it.
It flows like the sea and has tides why do you think they call space vehicles space ships. Dust flows,Dark matter flows, behind it all is resonance or a soundscape they all work in harmony otherwise you talking and me watching isn’t happening
If the universe has 7 levels of density how can it be the same temperature in them as light comes in and gets out and ones again, the more compact matter is in the white color, then up is violet, blue, green, yellow, orange, for last up is red, you might say there are not violet or green lights but for sure the steps in wave length are there, something is tricking as to see them
The universe cant be isotropic.
Странный привкус
electrons are all identical; want to bet that this myth goes bye bye in the near future?
Does this information challenge the "Big Bang" theory? It sounds like it does.
It does not , far from it. If someone was to challange big bang he d pretty much have challange origin of cosmic microwave background - cmb
If anything it questions flatness of the universe
The Universe is expanding, no other option. Find it out !
Yes it is expanding, but is the expansion accelerating?
Dark energy is as true as dark matter and string theory.
Of course the universe is not expanding. It is already infinite. Within it, everything disperses.
The universe expands.
The video is about the question if the expansion accelerates.
@John Doe The expansion is intrinsic not extrinsic. That means the spacetime metric expands with time. It does not mean that space is expanding in a higher dimensional space like a balloon.
So the distance between two objects gets bigger without a relative motion of the objects itself.
For a mathematical precise model of a spacetime expanding without a higher dimensional space to expand into see the _Friedmann-Lemaître-Robertson-Walker metric._
Space and time were created at same instant as mass and energy.
@@trimetrodon
Create energy?
@@kundakaps yes this is probably possible, because the conservation of energy is only tied to specific symmetries. The theory of general relativity leaves open the question of whether there is a conservation of energy for the ENTIRE UNIVERSE.
The universe is infinite. Therefore it can’t expand! It’s already everywhere without limits!
We can't say the universe is infinite but I agree with the view that it isn't expanding. The inflationary model makes no sense at all and doesn't fit the data. It's predictions aren't found...time to scrap it.
phk2000 . : I'd like to think what you've said is right. It seems like a real possibility.
Eli Cash no it can’t. That is ridiculous.
There is a problem with this logic , problem being is at this moment it is though thta t universe is ~90billion light years across . So this is where we expect to see particles. Beyonde that we do not know and most likely will never know. To go beyonde to measure if space exists there, as if it was possible, is ruined by the fact that we are there to measure it. We d need non physical way to measure it which means it can only be solved in theory which means you can not say its true with 100% certanty. Id still give it 1% tho , do not like it being impossible 😅
define 'everywhere' please.
Thank you.