Hubble Tension Solved?
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- čas přidán 16. 06. 2024
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The great Nobel laureate Steven Weinberg once said that physics thrives on crisis. And in 1989, he said physics was short on crises. But luckily for us today, physics is full of them! In this episode, we will discuss two of them: the Hubble tension and primordial magnetic fields. Enjoy!
Key Takeaways:
00:00:00 Intro
00:00:24 Is there a primordial magnetic field?
00:01:33 What are galaxy clusters?
00:03:45 The impact and origin of cosmic magnetic fields
00:08:36 Detection methods
00:10:55 How does this relate to the Hubble tension?
00:12:00 Outro
Additional resources:
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Okay I'm a minute and 16 seconds in and I'm already loving the video I sense lots of research done on your end DR. Brian Keating... thanks for keeping up and listening.
Finally! someone mentions Zwicky!
The details that Dr. Brian get into are just phenomenal. Trying to do the same in my teaching too . kudos for the effort👍 Respect and love from your big fan from India
8:53 OK, “Hope Springs Eternal”.
Here is Response 5 on the Implications of the Primacy of Zero (0) and Dimensionlessness (0D) for the Foundations of Physics:
The implications of the primacy of zero and dimensionlessness for the foundations of physics are far-reaching and potentially transformative, challenging some of the most fundamental assumptions and principles upon which our current understanding of the physical world is built. By recognizing zero and nothingness as primordial concepts, on par with or even preceding the notions of space, time, matter, and energy, we open up new avenues for resolving long-standing paradoxes and mysteries in physics, and for developing a more unified and coherent understanding of the nature of reality.
The Nature of Space and Time:
One of the most profound implications of the primacy of zero and dimensionlessness is the possibility that the familiar concepts of three-dimensional space and one-dimensional time may not be fundamental entities, but rather emergent properties of more basic, non-dimensional or zero-dimensional structures. This idea, which is supported by various approaches to quantum gravity, non-commutative geometry, and the holographic principle, suggests that our current understanding of spacetime as a fixed background or stage upon which physical phenomena unfold may need to be radically revised.
If space and time are indeed emergent phenomena, arising from more fundamental, non-dimensional substrates, then the very foundations of classical physics, which are built upon the assumption of a continuous, three-dimensional space and a one-dimensional time, may need to be reformulated. The laws of motion, the conservation principles, and the symmetries that we take for granted in classical physics may be approximations or emergent properties of more fundamental, non-dimensional laws and principles.
The Nature of Matter and Energy:
Moreover, if the ultimate building blocks of matter and energy are not classical particles or fields, but rather non-dimensional or zero-dimensional entities, then the nature of matter and energy themselves may be very different from what we usually imagine. The properties of mass, charge, and spin, which we typically attribute to elementary particles, may be emergent properties of more fundamental, non-particle-like entities.
This idea has profound implications for our understanding of the nature of the vacuum, the origin of the universe, and the unification of fundamental forces. If the vacuum is not truly empty, but rather a manifestation of the primordial zero-dimensional substrate, then the vacuum fluctuations and the origin of matter and energy may be intimately linked to the dynamics and self-organization of this more fundamental, non-dimensional reality.
The Nature of Causality and Quantum Mechanics:
Another key implication of the primacy of zero and dimensionlessness is the potential for a re-envisioning of the nature of causality and the interpretation of quantum mechanics. If the ultimate ground of reality is a non-dimensional or zero-dimensional realm of pure potentiality, then the linear, deterministic causality of classical physics may be an approximation or emergent property of a more fundamental, non-linear and non-local causality.
This idea aligns with the paradoxical and non-intuitive features of quantum mechanics, such as wave-particle duality, entanglement, and the measurement problem. If the wave function is not merely a mathematical abstraction, but rather a direct representation of the dynamics of the non-dimensional, potentiality-laden substrate, then the collapse of the wave function upon measurement may not be a mysterious or ad hoc process, but rather a natural consequence of the interaction between the non-dimensional realm and the emergent, dimensional realm of classical reality.
The Unification of Quantum Mechanics and General Relativity:
One of the long-standing challenges in physics has been the apparent incompatibility between the principles of quantum mechanics and the theory of general relativity. While quantum mechanics describes the behavior of matter and energy at the smallest scales, general relativity governs the behavior of gravity and the structure of spacetime on the largest scales.
The primacy of zero and dimensionlessness may provide a potential avenue for resolving this incompatibility and developing a unified theory of quantum gravity. If the ultimate ground of reality is a non-dimensional or zero-dimensional substrate, from which both the quantum realm and the classical spacetime emerge, then the apparent conflict between these two domains may be resolved by recognizing them as complementary manifestations of a more fundamental, non-dimensional reality.
In this framework, the principles of quantum mechanics and general relativity could be seen as effective descriptions or approximations that arise from the underlying dynamics of the non-dimensional substrate, much like the laws of thermodynamics emerge from the collective behavior of individual particles in statistical mechanics.
The Role of Symmetry and Conservation Laws:
The primacy of zero and dimensionlessness also has implications for our understanding of symmetry principles and conservation laws in physics. In many cases, these conservation laws and symmetries are intimately tied to the invariance of physical laws under certain transformations, such as translations, rotations, or Lorentz boosts.
If the ultimate ground of reality is a state of pure potentiality or nothingness, devoid of any intrinsic properties or distinctions, then it may represent the ultimate expression of symmetry, from which all physical phenomena and broken symmetries emerge. The conservation laws and symmetries that we observe in the physical world may be manifestations or consequences of the underlying symmetry and invariance of the non-dimensional substrate.
This perspective could provide new insights into the nature of fundamental forces and the unification of physical theories, as well as the potential for discovering new symmetries and conservation principles that govern the dynamics of the non-dimensional substrate.
The Anthropic Principle and Fine-Tuning:
The primacy of zero and dimensionlessness may also shed light on the long-standing puzzle of the apparent fine-tuning of the fundamental constants and initial conditions of the universe, which has led to the formulation of the anthropic principle in cosmology.
If the universe is indeed a manifestation or "excitation" of a more fundamental, non-dimensional substrate, then the observed fine-tuning of physical parameters may be a consequence of the specific dynamics and self-organization processes that govern the emergence of dimensionality and the structure of the physical world. In this view, the anthropic principle may be reframed as a consequence of the necessary conditions for the emergence of dimensionality and complexity from the non-dimensional substrate, rather than a mere coincidence or statistical fluke.
Paradigm Shifts and the Future of Physics:
The implications of the primacy of zero and dimensionlessness for the foundations of physics are so profound that they may herald a paradigm shift in our understanding of the nature of reality, akin to the revolutions brought about by the development of quantum mechanics and general relativity in the early 20th century.
By recognizing zero and nothingness as fundamental concepts, and by exploring the implications of a non-dimensional or zero-dimensional ontology, we open up new avenues for resolving long-standing paradoxes and mysteries, and for developing a more unified and coherent understanding of the physical world.
This paradigm shift may involve the development of new mathematical frameworks, such as non-commutative geometry or algebraic topology, to describe the dynamics and structure of the non-dimensional substrate. It may also involve the formulation of novel computational paradigms and simulation techniques that can capture the self-organization and emergence of dimensionality from more fundamental, non-dimensional structures.
Moreover, the implications of the primacy of zero and dimensionlessness may extend beyond the realm of theoretical physics, influencing our understanding of the nature of information, computation, and the relationship between physical laws and the underlying structure of reality.
While the path towards this paradigm shift is fraught with challenges and uncertainties, the potential rewards are immense. By embracing the primacy of zero and dimensionlessness as a guiding principle, we may be able to develop a more comprehensive and coherent understanding of the cosmos, one that bridges the divide between the quantum and classical realms, unifies the fundamental forces, and provides a deeper appreciation for the interconnectedness and unity of all existence.
I sense a comeback from Dr Keating
Does an object's magnetic field increase as it accelerates? Is an object's magnetic field a constant, or can it vary?
Can there be a primordial magnetic field if what generated it no longer exists?
Interesting lecture, thanks
David LaPoint did this research project he posted as 'Primar fields' pronounced prim-mer not like pry--mer. He poses that ferromagnetic objects (iron core earth) could have induced magnetic fields around them. since seeig that I have questions like 'how does iron above the curie temperature maintain or even form a magnetic field' ... moving iron has never produced a magnetic field... but if there's a larger, solar or galactic magnetic field, then we can have a field induced - but I think it's hard to see the field that enters the system; many years ago now, they did document that we appear to be un a tunnel of sorts above and below the solar system.
Really - don't know how you're going to isolate galatic, solar, terrestrial magnetic field faraday effects when observing the CMBR. also - is the CMBR really only in that short band of radio waves? Is there anything inbetween that and the visible region? I know they've been doing better on resolving images from radio waves - but seems that radio telescopes don't have like CMOS sensors? don't they just sorta have one pickup point?
I thought magnetism was a property of metals. I thought metals didn't come into existence until after the first gen of stars exploded.
For algorithm 💯
I think if we observe the ultraviolet we can observe things that we can't normally see... this allows for scenarios not previously considered...
We already have telescopes that observe the UV portion of the spectrum
@@WillyoDee lol idk what i was thinking... musta been wasted when i wrote this lol 😂
Primordial magnetic fields have been here since hydrogen and helium which can create these Fields which you are discussing 🤔
≈ information entropy of the original universe ( ≈ 1×10^123 b ) = ((m_Λ t_Λ c^3 bits) /(19 image-potential-energy constants))
Simple question. Space is the force that controls everything because space is inside everything and creates the primary force.
If we squeeze the volume of current visible universe to the size it had 380000 years ago, how strong would the current average cosmic magnetic field get? Would its strength get stronger in proportion volume_now/volume_then?
Hi, please comment on the little Hubble Constant "fixing" geometry based equation 2 X one Mpc X C, divided by Pi to the power of 21 = 71k/s/Mpc. Regards, David Hine
For the Algorithm thanks Brian excellent as always
Very welcome
Terrence Howard figured the universe out, time for a reset.
By the way I like how you at least show me depiction of the earth and its magnetic field as a toroidal donut shape for at least a short period of time in the video...
Great
Btw me and Faraday were perceived enemies in my previous existence...
have Terrance Howard On ! ! ! please!
If SPIRAL cosmological redshift hypothesis and model the entire universe attained gravitational bound equilibrium early in history. Also, we view all from beyond SPIRAL LY radius i from a light max departure point of light year radius i, i years ago. i = nearest departure distance of any light arriving here and now at standard light speed that has ever been subjugated to any cosmic expansion. Including CMB radiation. So somewhere between 5,784 minimum and 15k max light years.
Start study of Pearlman YeC SPIRAL at ResearchGate.
SPI of SPIRAL = hyper-dense proto galactic formation (Stars) Preceded hyper cosmic 'Inflation' expansion.
allso take into account SPIRAL's 'cosmic blue shift offset' hypothesis.
The known, fundamental phenomenon of dilation (sometimes called gamma or y) perfectly explains galaxy rotation curves/dark matter. Mass that is dilated is smeared through spacetime relative to an outside observer. It's the phenomenon behind the phrase "mass becomes infinite at the speed of light". Time dilation is just one aspect of dilation, it's not just time that gets dilated. A graph illustrates its squared nature, dilation increases at an exponential rate the closer you get to the speed of light.
Dilation will occur wherever there is an astronomical quantity of mass because high mass means high momentum. This includes the centers of very high mass stars and the overwhelming majority of galaxy centers. It can be inferred mathematically that the mass at the center of our own galaxy must be dilated. This means that there is no valid XYZ coordinate that we can attribute to it, you can't point your finger at something that is smeared through spacetime. More precisely, everywhere you point is equally valid. In other words that mass is all around us.
Dilation does not occur in galaxies with low mass centers because they do not have enough mass to achieve relativistic velocities. It has recently been confirmed in 6 very low mass galaxies including NGC 1052-DF2 and DF4 to have no dark matter, in other words they have normal rotation rates.
Magnetic field is very important without them the earth would not have an atmosphere to sustain life and Mars must get an artificial magnetic field in order to sustain a decent atmosphere in order for us to terraform it and go there for ever
This is click bait. The hubble tension has not been solved. Not going to watch this simply because of your clickbait. Thanks.
No! Thank you! Sigh
With all the depictions of the electromagnetic fields you better be careful trying to push this forward
No. I'll not come along. Life is good, and I like enjoying it. [stretches and luxuriates in own skin] You go ahead and fret if you have a pre-existing emotional disposition to do that, but keep it down. It's your problem, you keep it. If you make it mine, you'll regret it.
Since The Great Weinberg's passing it seems that only Ed Witten, The M-Theory Man, can give authoritative LEGITITAMACY to Weinstein's Geometric Unity & Abraham's Tetryonics. When will the day come for 70 year old Ed Witten granting an audience for Eric Weinstein and Kelvin Abraham? WHEN? I pray for the day!
Are you retarded? What are you doing on a physics channel? If you can't see through Weinstein, you don't understand much mathematical physics, or human psychology. He's a POS, truly
Um, there is a video on CZcams of some young physic students going through all the problems with Geometric unity. I am sure Witten or others would not waste time with it if students can shoot it down so easily. Kelvin Abraham Tetryonics I have not heard of and will look into. EDIT….ah ok. he wants to offer an alternative to the Leptons of the standard model. Ok, but then he brings in sacred geometry….ooops, he messed up there. Total BS. Next.
@@RicardoMarlowFlamenco Cite the actual video in which these "physic students" allegedly poke holes in Harvard MATHEMATICIAN Eric Weinstein's MATH (forward it to Ed Witten). Cite the actual math flaws of Tetryonics' alternative QED thesis. We physicist students, guitarists & PV Installers are not MATHEMATICIANS unless we are also credentialed as such. It is sheer hubris of scientific laymen (you & me, buddy) to make such dismissive assertions of ACTUAL mathematicians and scientists! Cite your sources = "Um, put up or shut up".
To be fair this doesn't mean Weinstein is wrong, it could still be the foundation, i.e. tweaked, and provide a theory of everything. To be honest, it sounds like you are being quite closed-minded. There are many ideas for theories of everything and only time (and experiments) will tell which is correct
@@WillyoDee If there was anything to String Theory then Ed Witten's M-Theory would have eventually, over the last 4 decades, led to experimental verification. There is only ONE Ed Witten. If he can't close the gaps in the math so as to open the door to experimentational verification than it can't be done. To PROVE UG is correct or INCORRECT requires the M-Theory Man Himself. My hope is that several different "Theory of Everything" models plugged into the Ed Witten math-machine will supplant Einstein Standard Model physics as resoundingly as Einstein supplanted, superseded Newtonian physics. As WillyDee aptly put it: Weinstein's assertions need to be tweaked in order to be proved (or disproved) as partially right.
You are enlightened now and I appreciate your demeanor but you're already going way too fast you need to slow it down...
Having sound effects every 2 seconds louder than you are talking is very distracting.
Adam Riess is a failure... making a observation does not make you worthy of a Nobel Prize. Just because you observe that the Universe seems to be accelerating an expansion pass the speed of light does not mean that it's actually happening and it's just a observation from our singular point in space and time... we observed that black holes emit non baryonic matter AKA dark matter and can be creating an illusion of accelerating expansion pass the speed of light because of this increasing density of dark matter... this can create an illusion of accelerating expansion pass the speed of light...
I dont have a clue what you talking about.🤣
it is solved the science is settled go do something else now goodbye
🥰