Physicist explains dark matter | Lisa Randall and Lex Fridman

[@LexClips]

Full podcast episode: kzbin.info/www/bejne/jIHEgKxpfJZgaKM Lex Fridman podcast channel: kzbin.info Guest bio: Lisa Randall is a theoretical physicist at Harvard.

[@thehypocriticalcynic9182]

Dark matter is the excrement of black holes (do i get some money now [?])...

[@RyanAmores-m1k]

Correction: physicist explains THEORY of the cosmological and quantum mechanical CONCEPT of ‘Dark Matter’....

[@theyshouldhavenevergivenme5439]

Correction: physicist explains THEORY of the cosmological and quantum mechanical CONCEPT of ‘Dark Matter’

[@SamBrett94]

I like this point about how language and our senses limits our understanding. I had this thought recently that even when we convey emotive words, they don't really explain much about how we feel about something. If I said something made me sad, it doesn't give any weight to the experience I've had. Its made me realise how subjective our experiences truly are, and how much they are influenced by our sensory inputs.

[@studious_viewer]

True

[@compromisedssh]

You’re correct when you say that poor descriptions do not convey exact meanings. People and languages have been around long enough to properly describe emotional experiences though. Whatever you feel, one thing I’ll promise you is that you’re not the first person to feel it. Most people can effortlessly describe their experiences, because that’s how language works. Talking isn’t a physics problem. You don’t have to sit down and figure something out. You just pull from the pool of words you know and let others know what’s going on. What you said is the equivalent of me saying “if I saw a rock and told you it was big, you’d have no idea of its true size,” and yeah- you’d be right. What most people do is use enough words to adequately communicate the point they’re trying to make lol.

[@wishiwsthr]

I think the words are there it's just that most people don't have that great of a command of the language to articulate our feelings.

[@davids8127]

You are right. Language is a barrier of understanding. When it comes to emotions I read a book from the Dalai lama explained to scientists how in their language understand thoughts/feelings/emotions and consciousness and they have more words and distinction that explains the work of the mind more efficiently.

[@MM-cz8zt]

We’ve spent more than 40 years and tens of billions of dollars looking for Dark Matter - all because it seems to explain a few select gravitational anomalies (not all of them). We literally have no evidence other than that. It falls apart as an explanation in galaxies like Abell 520. Many careers were spent searching for this and not finding it. Maybe there are other explanations for these few select gravitational anomalies that don’t require Dark Matter?

[@AMildCaseOfCovid]

Heretic

[@phish311420]

I doubt that ever occured to anyone...

[@11ThreeDoctor]

dark matter=Ether. Astro Physics is a cult. There degrees are worthless as the phony feds money.

[@jayr3635]

Agree

[@jme2006]

Not few, ALL those gravitational anomalies. It's a very clear picture too, and you can map it. Look up the universe dark matter map and see for yourself. It's a lot like being surrounded with glass bubbles. You can't ignore that it's clear and there, but you have no idea what it's made of.

[@randallsmith5631]

Dark matter doesn't interact with light. It's interacting with gravity. WOW

[@brettgallagher9924]

I didnt know all the people in the comment section are partical physisits and are way more knowledgable on this subject and are clearly smarter than her....

[@IsendielBobLea]

Welcome to the internet

[@Prometheus4096]

@@IsendielBobLea Welcome to Lex Friendman's audience.

[@nightwaves3203]

Dark is a term for scientists not knowing, which gives them room for talking about what they think about what they don't know.

[@oddsman01]

One more major blown observation and we’ll soon hear about this new, unifying theory: Deg * Dmt = Dmg Deg = dark energy Dmt = dark matter Dmg = DARK MAGIC

[@LegendaryBrandon1]

Schizo

[@sanityshorror]

Hey man have ever done DMT?

[@Defort-jd8xe]

Considering our insignificance in the existence its not really surprising we dont know what it is. We probably cant even imagine 99,9% of what the Universe is capable of showing.

[@tysonsmudfossiladventures3468]

Dark matter is a particle of light after it burns out. The particle is still there, its just not illuminated anymore.. Cosmic soup.

[@Defort-jd8xe]

@@tysonsmudfossiladventures3468 or its something that isnt even possible for the human mind to understand. We simply have no idea what it is. We think we know that its there.. but thats pretty much it.

[@amyd3793]

There's so much we don't fully understand about life🥰

[@rezadaneshi]

The fact that we assume dark matter does not interact with light (it does by altering photon’s path gravitationally), suggests that these dark matter particles are as small and dispersed as they need to be, that very seldom collide with photons if at all, therefore, best explanation is- At a certain point the energy we must put in a collision in particle accelerators would create a feeding run away black hole, so we are limited in seeing smaller particles in the particle soup we can observe or conclude with detectable permanent or short lived particles. What we can’t detect is anything smaller than 1.6x 10^-22. Dark matter

[@rezadaneshi]

@@Gnaritas42 Correct. Any higher energy than we currently use, the event horizon grows and gravitationally, all singularities start when gravity wins and time stops. If you are at that time within the gravitational pull of that singularity, it becomes a feeding black hole. We are at that red line. 2000 times smaller than protons. No smaller.

[@rezadaneshi]

@@Gnaritas42 as you wish

[@rezadaneshi]

@@Gnaritas42 No one knows anything for sure but in the sequence of gravity winning over electron degeneracy force to create white dwarfs and neutron degeneracy force to make neutron stars, some hypnosis suggest there is a particle degeneracy force that can only happen without time, so singularities are infinite space and overpacked with massless particles, used as evidence by Steven Hawkins for his theory of Hawking radiation which argues black holes are space, so infinitely packed, they leak matter antimatter particles right outside their event horizons into time … but maybe at the end we’d both be shocked that it was rhinoceros god that sneezed and created the universe.

[@Prometheus4096]

We don't assume dark matter does not interact with light. That is what we observe. Otherwise we would see it. All particles are small and their size has nothing to do with how they interact with photons. Light is both a particle and a wave. Or better, photons are a field. Electrons are also fields. They do not need to 'collide' to interact. That's classical physics thinking. NOT QM thinking. If those fields exist at the same spot, they interact. So if there is dark matter among a whole bunch of stars in a galaxy we can observe, then for sure that light is moving through that dark matter. And the fact we don't see it means it isn't interacting. Yes, if it is very dilute baryonic matter, the effect may be small and we may not observe it. But then so the gravitational effect has to be small. Which it isn't. So no, this is wrong. And that's obviosuly these case. Otherwise, people way smarter and way more talented than you wouldn't have worked on this problem for 40 years and not have found a solution. DING DONG!

[@thomasnewton7353]

guys: she is living, breathing proof that girls really can be just as good as guys at math and science. at this point, just can't deny it

[@mattorr2256]

I don’t think anyone is denying women’s equal abilities as men’s in science.

[@Jokerwolf666]

I think regular matter is not supposed to exist and was some type of glitch in the formation of our reality.

[@shaunsaintey1793]

My algorithm is all messed up and I barely see lex clips anymore, commenting to see if that helps.....

[@JungleJargon]

The speed of light isn’t constant throughout because time and distance aren’t constant throughout. It’s not complicated and it changes everything.

[@mastod0n1]

Time and distance not being constant comes from the fact that the speed of light in a vacuum *is* constant to all observers in all reference frames.

[@JungleJargon]

@@mastod0n1 Different reference frames have different rates of time and different measures of distance.

[@liggerstuxin1]

Please have her as a guest regularly. If she’s already a regular, my apologies. It’s been a while since I’ve watched Lex but I super love learning quantum black magic

[@steviejd5803]

How does Lex keep his eyes open?

[@stevedavis1437]

Noooo. Dark matter doesn't really exist. What's wrong is the theory of gravity. Otherwise we'd have some understanding of quantum gravity. It concerns me that Lisa keeps saying "we know" things that are just the "facts" that are representative of the best model we have so far. Just my 2c.

[@keith.anthony.infinity.h]

Dark matter is an observation not a theory. It is an effect we see but we definitely need to improve our theories of gravity or come up with entirely new theories of gravity for sure.

[@stevedavis1437]

@@keith.anthony.infinity.h Thank you. You said it more eloquently and compactly :-)

[@stevedavis1437]

Who tf are you to ask who tf am I? What's your point caller?

[@stevedavis1437]

@@hankyboy42594 How do you know I'm not equally qualified? Just askin'

[@HD46409]

The problem with dark matter is not that it's dark, it's that it doesn't appear to be matter the way we would understand it. She talks about a dark disk. But what physical interactions do we have with it? It seems to have no interactions with normal matter other than in gravitational interactions.

[@Prometheus4096]

How do you know dark matter is not matter?

[@nighttrain1565]

It's also a fantastic excuse for bad math😅

[@SuperAether]

If it were only about math, it would be half the trouble. The point is that in reality, it's about bad physics.

[@nighttrain1565]

@@SuperAether which stems from... Lol

[@jme2006]

It's not bad math. It's literally just an observation of something that is obviously there. Like when you're looking at glass. You can't see glass because it's transparent, but it's very easy to make out what it's distorting.

[@Steeled18]

Omg you figured it all out

[@Wypipo]

“The math isn’t wrong. It’s the universe that’s wrong.” …

[@JeffHoldenWS-NC]

My biggest question is dark matter transparent to light? I understand that it can then light but is it transparent to light. A galaxy can bend light and we can see what's behind it if it's in the right spot. But we can't see through it like it was the window.

[@awaken6760]

Just as dark matter holds the universe together, curiosity and discovery bring people together.

[@JungleJargon]

There is so much wrong in cosmology. It’s almost entirely based on assumptions, assumptions of dark matter assumptions of dark energy assumptions of a universe expanding into oblivion for no reason assumptions of a single age of the universe and the assumption that everything came from nothing like magic. Redshift is from a light source from a greater mass. Distant galaxies are more redshifted because of the greater amount of mass that the light has to pass by. The vacuum energy is from black holes absorbing space time. Dark energy is assumed because the correct measures of distance and time are not being taken into account. Matter and energy cannot make or direct themselves and they are only going from order to disorder disproving the idea that they made and directed themselves. The problem is that cosmologists are not considering the actual evidence in front of them. The evidence is one giant elephant 🐘 in the room that the scientists try their hardest to ignore and pretend that the elephant 🐘 isn’t there. The speed of light is NOT constant because the measurements of time and distance are NOT constant. The light from distant galaxies only slows down when it encounters the mass inside of a galaxy.

[@luigimarino374]

Very intriguing. Any particular sources you’ve developed these ideas with?

[@JungleJargon]

@@luigimarino374 Just by my lonesome doing thought experiments.

[@luigimarino374]

@@JungleJargon But many of those must’ve been inspired by works of others as well, no?

[@JungleJargon]

@@luigimarino374 Of course. The other scientists laid the foundation for General Relativity and I merely extrapolated.

[@luigimarino374]

@@JungleJargon In that case why don’t modern schools of thought extrapolate in the same way you do? Dogma? Not critiquing, just genuinely curious. If it seems obvious what follows general relativity, where are the accredited physicists exploring these ideas?

[@westracy8064]

Give me one reason to believe you, other than semantics.

[@danray892]

Dark matters

[@mikeclarke952]

I'm more of a MONDs person. None of the proposed particles, for decades now, have been found by the LHC or even show up in the Standard Model. Cosmology can't think of something either. All our present models can't account for this dark matter particle or family of particles period. Maybe it's time to really think outside the box. Maybe it's antimatter, maybe cosmic inflation worked to shift antimatter 1 dimension out of phase with our universe and there is really a shadow universe almost on top of us and a little bit of gravity can interact with our matter.

[@Prometheus4096]

If it is MOND, why can't we just adjust the equations and get a MOND that explains all what we see PLUS make accurate new predictions of things we haven't observed yet? Why? Not saying it can't be MOND, but if we just need some extra terms in the gravity equation, then that's easy to do. Shouldn't take 40 years.

[@tomszabo7350]

Where is the evidence for dark matter galaxies? Where is the gravitational lensing due to dark matter? Most probably dark matter is merely an artifact of how gravity is created: the reaction to the expansion of space. Basically, space is generated by matter via time inflation and radiated outward. This radiation of space causes gravity. As the space radiates away it clumps in cosmic voids ... it can't move toward matter because that is from where the space is radiating in the first place. This preferential clumping of space in galactic voids has a relativistic effect (when time is treated as an inflation) that can be observed at galactic scales: dark matter. The math is harder to explain but I've got some bits of it working.

[@jeffreyjohnson7359]

I think it takes hubris to say dark matter definitely exists. We can't see it or detect it or describe it. It's really a placeholder, telling us something is wrong with our theories.

[@gustinian]

Call me cynical but Dark Matter seems like a bit of a fudge. I suspect it is far more likely current theories are wrong (or at best seriously lacking) but so many models aligned with the Standard Model appear to work (just as Newtonian physics appeared to work until Maxwells equations opened a new perspective). Underlying all this is the uncomfortable fact that correlation does not equal causation and models only ever suggest 'truth', at best. It is in a aimilar vein as to whether mathematics is discoverwd or invented.

[@danray892]

So dark fudge then 😅

[@Prometheus4096]

The problem is that dark matter cannot be a fudge. Otherwise, we'd just add a fudge factor the the equation of gravity. And we would fully explain everything we observe. Problem fixed. People have tried that for 40 years and failed. You can't simply fudge dark matter. You got it backwards. You want them to fudge it. But they don't because they can't. And you call them admitting they can't fudge it as a 'fudge'. Instead of just fudging the equation and pretending there's no problem, physicists did the exact opposite.

[@tvm2209]

She actually looks like a dark matter expert and I mean that in a good way/compliment I swear lol

[@Ivxnrxjxs]

Might be an ignorant question but how does dark matter fit into the general theory of relativity? Like how does it interact with gravity?

[@Crispy_VA]

It’s only an ignorant question because it is the first thing they talk about. lol

[@Ivxnrxjxs]

​@@Crispy_VAthat is true.. thanks.

[@Prometheus4096]

Dark matter is a source of gravity, as understood by general relativity, that doesn't interact with EM radiation. And there needs to be clumps of it everywhere to explain basically everything about the universe. From galaxy cluster formation, galaxy rotation, the cosmic microwave background, and the formation of the unvierse.

[@Dsmbr03]

Well we do know that a star collapses into one, it's just one of the brightest things becomes one of the darkest thing. It loses it's "Light" properties.

[@5dollarshake263]

If only a genie actually existed that could answer 3 questions about the universe. Obviously you ask "How was the universe created", "How many examples of life exist in the universe", and hmmmm can't think of a 3rd.

[@deno2649]

What is the great filter.and Is it in front or behind us?

[@ld7949]

What if “dark matter” is simply multidimensional gravity interaction? What if the physics of the universe are different than on Earth? What if we need different formulas to explain the phenomena instead of inventing an invisible “dark matter “?

[@Prometheus4096]

What does that even mean? If the physics in a far away galaxy is different, then we just propose a different equation and that then perfectly explains gravity in the universe. Except, we can't do that. Every galaxt would need their own different law of gravity. Which doesn't make sense cosmology-wise either.

[@zyxmyk]

dark matter reminds me of the wind--it blows where it will and nobody can see it (unless it has something else in it, moisture or dirt) but nobody doubts its existence.

[@disturbed157]

The wind you experience and know where it comes from. Dark matter exists solely as a theory. It is impossible to disprove or prove. Science is working its way towards its own "invisible man in the sky"

[@Prometheus4096]

@@disturbed157 Except we measure the gravitational effects of dark matter all the time. We just don't know what it is because we can't 'see' it. And we don't have particle candidates for it. Nur can we modify the equations of gravity to explain it. Maybe the problem is with you? Not with physics?

[@westracy8064]

I'm not saying she's wrong, but I'm saying she could make a great sales rep.

[@tpjmadrigal12]

No disrespect to her. But dark matter can only be explained as "stuff we don't know about"

[@cryptostevo]

"If you collide element 115 with a proton you get 116 which is anti matter." Bob Lazar

[@ArmanddesEsseintes-ry7vv]

Gravity is not a force.

[@geekspeak1066]

Why are we assuming that dark matter is a single monolithic thing?

[@fredrikfarkas]

Imagine the shape of a wing and what makes it generate lift. Now apply this principle to anything. Light. Time. Gravity. Inertia. Conciousness. Etc. Playing with this and similar principles are playdough for the imaginative soul.

[@donnalambs9578]

😂i love when they pretend they don't know but they wearing it

[@justicewillprevail1106]

Our existence on earth is like a sci-fi story. We live on a blue water ball in a vast galaxy, all alone and we see nothing else.

[@jchapman1605]

But, there is no "dark matter." fiction of theorist to fill in the errors and absences in their formulas. She is about 2 years behind on this one

[@Prometheus4096]

Dark matter is literally created by experimentalists/observationalists. You pretend dark matter is something theorists came up with, because they like the math, and experimentalists can't observe, but also not disprove, because the theorists just come up with more clever complex math to explain why it isn't observed. And experimentalists have given up on trying to even talk to theorists because nothing will convince them dark matter isn't real. No. That's string theory. Dark matter is literally observed all the time. And instead of fudging the math and pretending we know better than the universe how it behaves, we just admitted we have no idea what it is and made a placeholder for it.

[@tysonsmudfossiladventures3468]

Dark matter is a particle of light after it burns out.. The particle is still there, you just cant see it no more. Cosmic soup! Not complicated..

[@danielandrews7561]

I often wonder if understanding particle entanglement might help us scientifically understand the spiritual realm.

[@margarita8442]

would a higgs-boson be comprised of several fluxions ?

[@onlyrick]

Dark matter doesn't interact with light, so you can't see it. A vacuum doesn't transmit sound waves, so you can't hear it. Maybe if you get close enough it smells funny. Be Cool.

[@adaptivealph8052]

Comparison of the ΛCDM model of the universe with the present SSI model. Why is there no dark energy in the SSI? Would love literally be energy we believe to experience? ΛCDM Foundation: General relativity and additional basic postulates Dark Matter: Assumed CDM, cold dark matter, WIMPs not found Dark Energy: Difficulty with the cosmological constant problem Distribution Universe has no center, no boundary, supported by Hubble’s law

[@clausbacher]

They have no idea about it, you can ask anybody what it is. Everybody would be right.

[@aaronrobertcattell8859]

what about harmonics ?

[@cleander97]

How do you know dark matter isn’t just the effect of much higher number of smaller black holes in our galaxy?

[@Prometheus4096]

Back holes aren't dark.

[@Avenged666]

It may not exist at all.

[@wishiwsthr]

There is so much we don't understand about our universe especially energy, it reminds me that we're just apes

[@LuisAFlorit]

Dark matter = luminiferous aether. Physicists learned nothing from Michelson-Morley.

[@MCjaguarr]

is dark matter accounted accounted for during space missions? I am FAR from an expert but I am a degree'd Mechanical Engineer who took Orbital Mechanics. We never spoke about dark matter in these equations. So how can planets and space flight be done so accurately without taking into account 95% of mass/gravity?? It seems like dark matter only gets applied at larger scales (galaxy formation and holding the universe together) but if it is 95% of matter/gravity how is it not used in space flight and orbital mechanics calculations?? Maybe it is and i just dont know, bc i certainly dont do calculations for NASA or SpaceX, but, like I said, I never saw it in my orbital mechanics class. IF dark matter is not used in orbital mechanics and space flight (because we seem to do both of these very accurately), how is dark matter not just a cope for bad mathematics, inaccurate theories, or incomplete theories of galaxy formation and stability??

[@alexwelts2553]

The 2 circles that intersect to make vesica pisces. That sliver is human perception as it is now. Stagnant because there's so many cyclical history repeating events that have parts of our ancestors with hidden rewritten untrue history... So Break the cycles consciously and human perception gets bigger and spirals instead of circles. Intersecting spirals and facets makes a diamond vesica pisces on a mobile unstuck perspective

[@MattGreen-e8i]

If you cannot discover new laws of physics, you make up dark matter. That is how you make a career in physics.

[@phil-o-phobic8608]

I mean, a large part of astrophysics is attempting to define the unknown, but how can you define something with no definition, or if we lack the technology to observe it effectively? It’s just like how the geocentric model of the universe was finally put to bed AFTER the invention of the telescope; how could anyone know better without the proper technology and math? Until then, everything is speculative. All theories are iterative, and they have to be established to be disproven. If there were no theories of our place in the universe, we wouldn’t have had geocentric, heliocentric or barycentric coordinate models that challenged the hypotheses of the day. Dark matter will become more defined over time, but just like folks centuries ago thought the Earth was the center of the universe until given better means to prove otherwise, we’ll learn more about dark matter, redefine and rename it as more information and calculations present alternative revelations.

[@oskaraper]

They said the same thing about newton I’m sure haha but that’s humans in a nutshell scared of new things, at first.

[@ronaldkemp3952]

I do not believe the motion cosmologists blame on dark matter is caused by missing matter. I believe the motion is caused by a slow but constant acceleration that only occurs to stars and galaxies because they radiate million mile per hour solar winds. I believe they are like star ships slowly building up their velocity by the ions and particles they spew. They're like rockets with slow ion engines, constantly applying a small thrust so slow that it can't be measured directly. The only way to measure it is over long periods of time. And since we don't live very long as a specie we can't measure it. This motion happens to every star and galaxy. So, the older they are the more momentum they will have built up. Take the solar system orbiting around the Milky Way at about 536,000 mi/h. According to calculations because it's so far from the barycenter of our galaxy's mass it should be traveling around 86,000 mi/h. There is a large discrepancy between what's predicted and what's measured, around 450,000 mi/h too fast. If every star and every galaxy slowly propelled itself then all we would have to do is take the age of the star or galaxy and divide it by the velocity in question to determine the rate at which they accelerate over time. We can easily confirm or refute this postulate. Every star and galaxy should have the same exact acceleration rate because mass is weightless in the vacuum of space. All bodies spewing a solar wind regardless of weight or mass would then accelerate at the same rate. The acceleration of our solar system should be the same as the acceleration occurring to the Milky Way galaxy. If they don't have the same acceleration rate then this postulate fails. If their acceleration rate is different, then the postulate is wrong. Our solar system is about 4,500,000,000 years old. It's discrepancy in velocity is 450,000 mi/h. 4.5 billion divided by 450,000 = 10,000. Thus every 10,000 years the solar system gains an extra 1 mi/h in it's velocity. The rate of acceleration is a 1 mi/h (1.61 km/h) increase in velocity every 10,000 years. This comes out to be 0.00000482 in/s (0.0000122 cm/s). Which is about twice the width of a proton every second. Extremely slow but constant. Our Milky Way galaxy is heading towards what's called the great attractor at roughly 1,370,000 mi/h. According to measurements, the largest galaxy nears ours is the Andromeda galaxy. It's 2.5 million light years away. It's too far away to effect the absolute motion of our galaxy. Besides, our galaxy and andromeda are heading towards a large void. There is no mass large enough or close enough to us that would explain the rapid motion of our galaxy. The Milky Way is said to be 13.7 billion years old. Divide it by 1.37 million mi/h and we get 10,000. Thus the solar system and the Milky Way galaxy produce the same slow acceleration of a 1 mi/h (1.61 km/h) increase in velocity every 10,000 years. There is no missing mass in the equations. The equations are missing this slow but constant ion propulsion produced by their fast solar winds. What predictions can be made from this postulate? Well, if stars and galaxies are slowly propelling themselves then the bodies that don't produce a solar wind would not experience this extra motion. Sure enough I checked and planets, moons, comets and all the other small bodies in our solar system do not appear to be affected by dark matter. Their motion can be perfectly explained by the laws of motion and general relativity. Astronomers have no need to assume dark matter affects them. What other predictions can be made? Well, if true then a young star or young galaxy would not seem to be affected by dark matter. This acceleration is slow, takes time to accumulate. So young stars and young diffuse galaxies would not existed long enough to produce any noticeable difference between the velocity measured and what's predicted. I checked and sure enough the young S type stars orbiting close to the supermassive black hole Sagittarius A in the center of our galaxy and young diffuse galaxies are not affected by dark matter. Recently the Gaia satellite discovered galaxies extremely far away, which should be young and they do not appear to be affected by dark matter. They reported it appears dark matter doesn't show up in their measurements until about 5 billion years after the big bang. One astronomer postulated that maybe there was a dark matter big bang after the first big bang that created all the matter. Nope, it's because of time again. What other predictions can be made? Well, if the acceleration rate is extremely slow 0.00000482 in/s (0.0000122 cm/s), it's not enough of a jolt to change the trajectory of the star orbiting a black hole in the galaxy. So if a star or satellite galaxy was say, 13.7 billion years old then it would be orbiting the galaxy at about 1,371,000 mi/h. The acceleration rate would be too slow so the old body would not be able to reach an escape velocity. A 0.00000482 in/s (0.0000122 cm/s) increase in velocity is not enough to change it trajectory. Regardless of it's accumulated motion over time it would always orbit the galaxy, never able to reach an escape velocity. Every prediction this postulate makes explains every observation. Matter is not missing in the universe. This slow constant acceleration of 0.00000482 in/s (0.0000122 cm/s) occurring only to stars and galaxies is missing from the equations. In the books I published in 2021 before the JWST was launched, I called it the AP theory for Accelerated Propulsion Theory.

[@HobieH3]

I suggest everyone watch Angela Collier's Dark Matter is Not a Theory video.

[@chancerobinson5112]

And, nothing himself, beholds Nothing that is not there and the nothing that is. - Wallace Stevens “The Snow Man”😊(circa 1955)

[@seqranger1]

I try to tell everyone what I learned in Afghanistan. People in general care about the same things. They want food, water, shelter, to be loved.. it doesn't matter where they live, what color their skin is, what god they believe in. IF you could take away religion, take away counties and boundaries, take away skin color.. what people would see is that everyone on earth is their brother and sister.

[@richardhouser508]

Lex, dark matter is a interesting subject! Dr. Randall is very lucid! And, she is better looking than either you or me! Good job!

[@abstract5249]

She's good looking, but she's not better looking than me. I'm so attractive, every woman that looks upon my face wells up with tears of joy, for they have never laid eyes upon such a beautiful specimen of a man. I'm tall, dark, and handsome with hunter eyes as piercing as an alpha wolf's and as blue as the roaring flame of a Bunsen burner. My hair is absolutely magestic like lion's mane, long and wavy and dark brown. My beard is voluptuous and full, yet cleanly trimmed to align with my incredible jawline, an evolutionarily perfected mandible so sharp it makes my own teeth jealous. Oh, my teeth! Extracted from the essence of the moon and smithed to perfection by the gods! I'm perfect. I couldn't have flaws if I tried.

[@Damo-np7ul]

Dark matter and dark energy are unsatisfactory placeholders. Names or labels for effects we have observed and can't explain. Dark matter will mostly likely turn out to be dust and particles. Dark energy will mostly likely be relativistic spacetime uncompressing and how we observe those effects. Spacetime is compressed not curved by mass!

[@yobardoYobardo]

Dark matter is that part in between your ballz and crack. if you don't scrub you have dark matter 😂

[@JungleJargon]

What about general relativity? It’s no longer just a theory. It’s now an actual observation. That considered, it is the actual state of the universe. Now considering the fact that gravity drops off exponentially outside of a galaxy that means the effects of gravity on time and distance drop off exponentially so time flies by and a yardstick to measure distance is much longer relative to where we are under the effects of gravity. This means all of our measures of time and distance most places we look in outer space are way off one way or another. The actual distance of the galaxy is very important because there is dilation of the distance between us and the distant galaxy. In fact many calculations of distance and speed are off because the dilation of distance is considerable where there is no mass between us and the observation. The result is that everything is much closer to us than they appear to be. Added to that is that time also passes by faster wherever there is no matter or mass between us and the observations. So there are two factors. The distance isn’t as far and the time it takes for the light to reach us isn’t as much setting up the scenario of a much younger universe. So before you consider something imagined like dark matter and dark energy, try to understanding it with known verifiable observations. When you observe things in outer space it’s not like looking at a dog or a cat because locally the measures of time and distance are flat or constant. On larger scales the measures of time and distance are NOT constant or flat. They change. This means the measurements of time and distance change. (It means the speed of light changes.) Everything away from the mass of a galaxy is moving faster. The spiral arms of galaxies are moving faster and superluminal motion is said to exceed the speed of light seven times and we know that’s not the case. When distance expands it means that the distance is less than it appears to us to be so the spiral arms aren’t moving as far or as fast as they appear to us to be moving besides the fact that things take place at a faster rate of time in the outer arms since the clocks are moving faster away from the main mass of the galaxy. The vacuum energy of space has been linked to black holes absorbing time and space, not because of inflation. Redshift is due to the fact that the light from distant galaxies is passing by or through more mass and gravity in order to reach us where we are in a much smaller galaxy. If a tree was in motion with an apple, the apple would be in motion too. There’s no infinite acceleration. Only if the jet containing a tree with an apple was always accelerating, the apple would fall. They say everything is accelerating but not if all gravitational forces were pulling on it equally. It would have no acceleration and no slowing down of time and no contraction of distance. Light would pass through such a place instantly. That’s why light passes between galaxies instantaneously. There’s no significant amount of gravity to slow it down as the entire universe all around it is pulling on it.

[@hungryformusik]

So there is no need for dark matter? Everything is explained by the correct application of General Relativity?

[@JungleJargon]

@@hungryformusik Yes

[@gdaddybiggins9788]

It's the clockwork behind the illusion

[@Alexxf35]

Gravity isnt a force

[@SandwichKing-lj4ej]

I hear we guess about dark matter and energy, but don’t really know.

[@chenardpierre8270]

We still don't know what dark matter is. It is maybe time to go back to the blackboard and think. Maybe it will finish like the string theory. A theory should be testable and not a series of equations void of sense. We need better observations to understand the gravitation of the galaxies instead of fancy mathematical papers.

[@Prometheus4096]

You got it backwards. We call it 'dark matter' because we don't know what it is and we have been 'going to the blackboard and thinking' about it for 40 years. In stark contrast to string theory, dark matter is actually observed. Strings are not. Dark matter explains an observation. String theory explains nothing. Dark matter has no math that can explain what it is. String theory has a whole bunch of math that doesn't explain anything. Dark matter is literally the opposite approach to doing science compared to string theory.

[@Fede45454]

I dont think the evidence for dark matter is there like string theory

[@KR-jq3mj]

Dark matter is a name given to something we have no knowledge of ... fantastic 👏 when we out there ... andcwe see mature stuff thats aged out of existence and is no longer there ... how do we explain that... and gravitation pull ?? Everywhere ??

[@benoates4744]

She wanted me to let you know that she wrote a book

[@chrisparker2118]

I'd really like to see Pierre Robitaille on this podcast. His LMH model of the sun is a game changer.

[@SpencerWilliams-nv6ge]

So it collapses she says but doesn’t bother to mention wtf that means

[@edimbukvarevic90]

It's just ordinary matter that is dark and/or artifacts (errors in the perception or representation of information introduced by the involved equipment or technique).

[@Prometheus4096]

Ordinary matter ie baryonic matter is not dark. And it is not an artifact either because artifacts can be explained as being artifacts.

[@Kimoharoun]

Either gravitational theorem is incomplete or dark matter exists. I have no fucking idea which is more correct.

[@zachmoyer1849]

i think its gonna be a minute before we do so id say pick the one that makes you feel good lol

[@cloudysunset2102]

Dark matter is laughing its ass off at us....

[@mr.ssb33]

Next time u get a physicist on here make sure they draw simple illustrations on what they’re describing with all these complicated terms hahaha

[@johntrimble8335]

x5 the energy of regular atoms 😮 never thought of that. It's way faster then regular matter, way faster than light..

[@Ufondeur27]

Of course dark matter exists… the force generated by space time comes from that.

[@alexwelts2553]

Pretty sure the dinosaurs are still here. Evolution made them smaller, camouflaged, but in consciousness very much around. The ancestors of rh negative. I love them and am so thankful for my basal ganglia

[@armankc8110]

We know nothing about it but I wrote a book on it

[@timyo6288]

i never knew woman can also be a physicist

[@oplkfdhgk]

element 115=dark matter. the information has been all around us but we were too ignorant to notice it.

[@Defort-jd8xe]

oh jesus..

[@aychinger]

I like the idea, but… no. It is not.

[@aychinger]

(Please know that I do trust Bob Lazar and I do think that stable E 115 is extremely relevant. Yet dark matter imho is an artifact from mainstream physics in order to rescue erroneous cosmology. Born to fail. 😉)

[@Defort-jd8xe]

@@aychinger Tutorial on how to discredit everything you're about to say: "Please know that I do trust Bob Lazar"

[@aychinger]

@@Defort-jd8xe Time will tell soon. (But you get my credits for your on-the-spot comment which made me laugh, well worded! 😆)

[@vc4961]

God she's so smart

[@TheYoutubeG.O.A.T]

I dont have 19 minutes. Someone break it down to a few sentences or less.

[@HexG-Unit]

Explained dark matter but they haven't proved it 😂

[@MM-cz8zt]

Or found any evidence outside of a few select gravitational anomalies in galaxies.

[@jme2006]

They have. It's pretty easy and clear to map it out. It's like looking at glass. We know it's distorting light and it's there. We just don't know what it "is made of"

[@cujimmy1366]

Whats the Matter. Everything. Like a galactic sponge.

[@jackadoni]

People have no idea physicists have NO FREAKING Idea!! But the BS is good

[@Steril707]

What if it's ALIENS?

[@Zean_Luke]

We know what we know nothing!

[@dennismason3740]

Focusing on dark matter (and all "dark" permutations) serves extra-dimensional practice as all dark stuff is but one of infinite dimensions and can grant the open minded/hearted scientist a fab view into the unknown. Noice. Infinite is real!

[@restwellcloud-ix8ee]

how can you explain something you have no idea what it is, that’s not explaining that’s saying I don’t know what it is, we are babies just starting to crawl in the scale of things

[@shamrokz95]

Hmm.. you would think someone at this level of thinking would realize "changing the earth" is necessary for the future of humanity and life as a whole. The faster we get off this planet.. the better it is for life as a whole. Short term pain for long term gain. 😈 ALL life on earth will cease to exist if we remain on a single planet and focus on the climate.

[@aaronrobertcattell8859]

Laser Gravitational Waves ?

[@DayLateGamerWill]

Why does she sound like she has to burp but keeps suppressing it? Its distracting af

[@zachmoyer1849]

its ricks unknown daughter

[@doomstarks182]

I know where the “dark matter” is. It’s behind the mass. It’s in the space the mass takes up. Anyone wants to discuss I’ve been researching this for a bit and have tied it back to quantum theory with the holographic principle and zero density fields.

[@buckanderson3520]

I wonder what percentage of a black hole's mass is from dark matter. Can dark matter form black holes by itself or does ordinary matter have to be involved?

[@wingoreviewsboxingandmma3667]

Just thinking now that dark matter is the rest of matter in the 4th spacial dimension having a gravitational effect in our 3 dimensional observations. No math behind this just a thought experiment

[@sosomadman]

Can you really call time a spacial dimension? Altho I do agree