What If Black Holes ARE Dark Energy? 

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We tend to imagine there are connectings between things that we don’t understand. Quantum mechanics and consciousness, aliens and pyramids, black holes and dark matter, dark matter and dark energy, dark energy and black holes. Usually there’s no real relationship whatsoever, but this last pair-black holes and dark energy being the same thing-has received some recent hype in the press. Let’s see if it might actually be true.
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Publicado em


21 Mar 2023



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Comentários : 2,1 mil   
@pbsspacetime 11 meses atrás
Hey Space Timers! Want to deep dive some Space Time and watch ALL the episodes referenced in this week's episode? Then check out our episode companion playlist:
@kindlin 11 meses atrás
That's a great idea! These videos are so massive in their undertaking that at least 5 other videos can be directly recommended, while those 5 will each lead down their own rabbit holes.
@onetruth5183 11 meses atrás
If we live in a blackhole, this is all moot.
@k_tess 11 meses atrás
Hey could anyone help me with something. The geometry around a blackhole just simply would not allow for this correct? The very space around a black hole falls INWARD toward the singularity. To get expansion the solution for that is a whitehole. Isn't it?
@sureshbaliyan3655 11 meses atrás
​@@k_tessthere are many unknown forces around black holes. Atom nuclei we predicted many particles to explain the stability of nucleus , simmilar theory required to explain structure of black hole😢
@Stroheim333 11 meses atrás
If the new theory in the video is correct, then you can bet that black hole's dark enery is also responsible for the phenomenon we now ascribe to black matter.
@Smoke_Cloud 11 meses atrás
"People love to imagine things that they don't understand are somehow connected to each other" Me, that's me, I'm people.
@frinoffrobis 11 meses atrás
lol, I'm so happy for you 😊
@markmuller7962 11 meses atrás
I'm atheist and very skeptical in general
@Just_a_Reflection 11 meses atrás
​@Mark Muller Just stay open-minded, fervent about finding the truth, and willing to accept it if you find it, even if it negates everything you may have previously believed.
@markmuller7962 11 meses atrás
@@Just_a_Reflection You're contradicting yourself, being skeptical and atheist means not holding any kind of belief Edit: Your name explains everything I guess
@Rydonittelo 11 meses atrás
@@markmuller7962 Yea, you'll probably grow out of that by the time you are 30 kiddo. I found it an awful lot easier to be an atheist in my 20s when I still thought I knew everything 😁👍🏻
@DrBecky 11 meses atrás
Thanks for the shoutout Matt and co! Great to see some of the historical cosmological context covered 👍
@MacNif 11 meses atrás
Love your content Dr. Becky!
@markh9836 11 meses atrás
This is the BRvid space channel synergy I've been waiting for!!! 😃
@alean79 11 meses atrás
Awesome channels, both Dr. Becky and Matt's PBS Space Time!!
@robhappier 11 meses atrás
Although I agree with being skeptical about a new observational experiment's conclusion. There are other observational experiments that had reached the same conclusion. Gravity = the spaceless and timeless vacuum energy state of matter!!! :)
@bierrollerful 11 meses atrás
Here's the link to Dr. Becky's video on that topic:
@jibbaspaa 11 meses atrás
I am but a very ignorant electrician , I have followed this channel for year , I get maybe 30-40% of what’s being discussed , but your presentation skills, you vibrant explanations , and your sheer intelligence makes every video a joy to consume , thanks for what you do
@johnnybhoy4278 11 meses atrás
I remodel homes. Aka glorified handyman. I've been learning about astrophysics for decades and still I am unable to grasp most of it. I've always wanted to know the fundamental truth of reality.
@francescosegre 11 meses atrás
Same here, long time follower of the channel with zero background in astrophysics: I love the subject so much that I keep watching although I constantly make almost nothing out of it 🥲
@DrYalex 11 meses atrás
"the smarter your mind, the smarter your god"... 100% factual truth "ignorance is not a disease, but a state of mind"... also 100% factual truth I am over 60, and I can't stop educating myself, lol I know, I will continue learning daily - till the day I die....and that is a cig way into my great-grandmother's words "You live 100 years, you learn 100 years, yet you'll die an idiot". DO NOT stop learning!!!
@DrYalex 11 meses atrás
@@francescosegre keep watching... it will come!
@DrYalex 11 meses atrás
@@johnnybhoy4278 keep watching... understand will follow. On, choose "simple English" (if option is possible) to get the gist of anything before diving into the info fully... I do. helps a lot. Best of wishes and NEVER stop learning!
@pinesyeet 11 meses atrás
PBS Space Time is in my opinion, the best science show I have ever seen. It's hard to put into words how much I love your videos. Absolutely fantastic work.
@ryanaromero 11 meses atrás
Check out Sea, also Space is Ace
@pinesyeet 11 meses atrás
@@ryanaromero Will do, thanks for the tip
@Lue_Kang 10 meses atrás
PBS Space Time, SEA and Anton Petrov are my top 3 space related channels. No sensationalized click bait, just straight up current scientific information. What a treat!
@elpatator 10 meses atrás
add cool words to the mix. dr kipping teaches at columbia and is a fantastic communicator with a way with words. him and SEA are my all time favorites.
@pinesyeet 10 meses atrás
Thanks everyone for great tips on channels, they're great!
@usopenplayer 11 meses atrás
I love how respectful you are in criticizing others' work. It's a hard skill to acquire, and you set a great example.
@ShawnTheRazor 11 meses atrás
He does it in such a way to where some people won't even notice. A beautiful skill to have.
@JohnGardnerAlhadis 11 meses atrás
It didn't strike me as criticism, but rather, a healthy degree of cautious scepticism. The grander the claim(s), the more it behoves the reader to remain cynical. And from what little my Neanderthal brain comprehended from this video, this paper's proposing some pretty massive claims (pun intended).
@aluisious 11 meses atrás
I feel the more time you spend trying to be productive and running into your own limits, the easier it can be to be humble critiquing others.
@theabyss5647 11 meses atrás
Because it's not critique.
@SCP-5000 11 meses atrás
He's just performing the script!
@reptariguess 11 meses atrás
i really love when Matt changes his cadence going into the ". . . Space Time" outro
This wasn't a good one for the outro
@cordlefhrichter1520 11 meses atrás
That's the one thing I hate about these videos.
@whochecksthis 11 meses atrás
Thats the one thing i get in these videos
@quentinpsausages 11 meses atrás
"For complicated reasons due to general relativity being weird" is now my go-to excuse for basically anything 😂
@jengleheimerschmitt7941 10 meses atrás
"You've been late to work three times this month"
@bradleywalker8642 8 meses atrás
​@@jengleheimerschmitt7941 "But time is relative to each observer, so from my perspective, I wasn't late, you were just early."
@@bradleywalker8642 you sound like key and peele doing NDT...
@ryanhoward4139 11 meses atrás
"A black hole only knows about what falls into it" in my head became "The black hole knows what's inside it at all times. It knows this because it knows what isn't inside it."
@Norantio 11 meses atrás
Thank you Matt! I was wondering if you and your show could cover "Quantised Inertia" theory at some point? A vehicle going to space to test the theory is going to space on a Falcon 9 soon, and I think more people would be interested to hear about it.
@robertfarrell6757 11 meses atrás
I always look forward to the PBS Space Time video when a hot topic pops up in cosmology. I appreciate that the skepticism is expressed respectfully on this channel. And there should certainly be skepticism on these claims, but it is better to consider the possibility that the authors could be on to something rather than arrogantly dismiss them with a wave of the hand. This channel gets it right. Thanks for the continuing effort to help explain the topics to someone like me. I am a highly interested layperson, and the vast majority of other channels are either too basic for me, or far beyond anything I could understand without actually being a researcher in the field.
@oliviasvahn4090 11 meses atrás
I love the phrasing “For complicated reasons due to relativity being weird…” 😂 So true! Wonderful video! I think I understood only 5% of it but it’s still wonderful! Great work!
5%! Look at Ms Big Brain here 😅
Damn, 5%?
@mikeoxmall69420 11 meses atrás
Spacetime tomfoolery
My man understood regular matter and ignore dark matter and energy lol😂
@blakkwaltz 11 meses atrás
You guys are getting percents?
@mediawolf1 11 meses atrás
I've watched a number of decent videos on this topic. That said, I've come to expect PBS Space Time to provide the clearest explanations, and this episode did not disappoint. 🙏
@ahpstudiostamil 7 meses atrás
Dear brothers and sisters, I have published a series of papers (totally 9 nos.) on "Theory of Singularity" [Volume 10; issue 03,04; 2023] - arcjournals - International journal of advanced research in physical science - Open access for free download. 1) New representation of Gravitation 2) Structure of black holes 3) Finite structure of space-time. 4) Real dimensions of space-time 5) Singularity 6) Source of dark energy...etc "Fundamental theory of Singularity" - The new proposed study that serves one fundamental for general relativity and quantum mechanics by solving the incompatibility between them...thank you
@robokaos69 10 meses atrás
While I was watching this I took note of just how clean the camera footage is, and how well it's blended with the background and animations. Overall the visuals of videos on this channel are really well done, and I wish to voice appreciation of that.
@kelsey9069 11 meses atrás
I love this jab at quantum consciousness. It feels fitting for the topic. I have a hard time making sense of it and it was explained to me in detail for a class I’m taking for my degree.
@aR3mYs 11 meses atrás
that PC-to-mind analogy is pure diamond
@ultimaIXultima 11 meses atrás
haha, Dr Becky came up - love it! that said, when a PBS spacetime vid hits my notifications, i drop everything. you guys make some of the best content on the internet. meetings at work? launch the vid and mute my phone. someone asks me a direct question? "oh, i was fixing something, somewhere (i was listening to conjectures about the universe)... can you repeat the question?" Please, never change. haha!
@undeadwilldestroyall 11 meses atrás
Props to your motion design/VFX team. This might be some of their best work yet
@jasonschein 11 meses atrás
Came here to say the same thing. Amazing visuals on this episode!
@minibuns5397 11 meses atrás
let’s just say everyone has their standards.
@HellXels 11 meses atrás
it's AI 🤣
​@@HellXels no it does have that unique style, not AI
@ChemEDan 11 meses atrás
@@windowsxpmemesandstufflol Prompt: Graphics in style of PBS spacetime AI: Gotcha fam
@drndn 11 meses atrás
Thank you very much for doing the "What If Black Holes ARE Dark Energy?" video, this was something I had explicitly requested on the Discord back when that idea was published.
@saraswati_6171 11 meses atrás
I’ve thought like this for a long time, I m glad to see that theoretical physicists have at least considered all this. It may be wrong but I’m glad curiosity allows all possibilities to smash up against evidence.
@FunkyAbigail 11 meses atrás
What I'm hearing is that dark energy and thus black holes are actually the friends we made along the way.
@StretchOnYT 10 meses atrás
Gosh, this guy is by far my favorite show host for PBS ST
@brenorocha6687 11 meses atrás
"People love to imagine that things that they don't understand are somehow connected to each other." This explains so many behaviors! I'll keep this in mind from now on.
@Cornzilla888 11 meses atrás
So glad you plugged Dr. Becky's channel. She has a great explanation.
@toddhenning8304 11 meses atrás
Agreed! 💯%
@sunspot42 11 meses atrás
Yeah, she actually studies the black holes in galactic centers and their evolution and she pretty much ripped this paper apart. Essentially, the authors ignored a lot of research from the past 20 years where we now better understand how the black holes in galactic centers grow, not just thru absorbing gas and stars but also via black hole mergers as larger galaxies swallow smaller ones and their central black holes.
@georgionw6554 11 meses atrás
The thing that amazes me is that there is a answer to all our questions we have about the universe.
@MatterSpace 11 meses atrás
Been waiting for this one! Thank you Matt and team for another amazing video on a most fascinating subject! Visuals are insane btw, so well crafted.
@Eris123451 11 meses atrás
That innocent sounding phrase, "That may one day be detectable," pretty much kills of it. Nonetheless welcome a change from the more SF oriented episodes that we've had recently.
@robbabcock_ 11 meses atrás
Great video! This is a really intriguing idea, and one can see how people might wish it into existence. It's a novel take for sure, and it will be cool to see if the paper is dissected seriously by the community.
@bvbxiong5791 10 meses atrás
in the english language "black" equates to "dark"...that's good enough for me.
@bipolarminddroppings 11 meses atrás
This is the first "dark energy is just..." theory that actually makes some sense. It's probably wrong, but it's not obviously wrong, that's always a good start in science. Einstein and his greatest blunder is a fascinating story, all the more so when it turned out he was so damn smart that he actually got it right, for the wrong reason.
@JonCofer 9 meses atrás
I don’t understand most of what he talks about, but I’m addicted to listening to it and trying.
@hosh1313 10 meses atrás
I love how we have dismissed the Aether but are now on the lookout for dark matter and dark energy! 🙃
@EnglishMike 11 meses atrás
Shots fired! The fact that Matt is willing to use the d-word ("dishonest") in his characterization of the paper is all you need to know about his personal opinion of it.
@peters616 10 meses atrás
I understood that paper's conclusions a little differently than how you set it forth in the video. As space-time expanded the black holes wound up with more space-time in them, space-time has an inherent vacuum energy, and because of the law of the conversation of energy requires the added energy inside the black holes to be balanced, it affects space-time outside of the black hole causing the acceleration of the universe around it. In other words, there is no separate stuff comprising dark energy it's just the vacuum energy of space-time combined with how that space-time expansion is interacting with black holes that causes the phenomena we observe that we attribute to dark energy.
@nickrivich2356 11 meses atrás
as a recently diagnosed person with autism, the connection between the things you mentioned in the beginning do in fact have a connection.
@johnmorrell3187 11 meses atrás
I saw discussions of this showing up on news feeds and I thought to myself "I think I'll just wait for Space-time to hit this"
@wreck-loose 11 meses atrás
I've thought of a similar situation. If our Universe is indeed 'inside' a Black Hole in a parent universe, the rate at which that Black Hole consumes matter determines the strength of Dark Energy and the rate of expansion of our Universe. A Black Hole that is consuming almost nothing would mean that the universe inside it would have a very slow expansion, while one that is feasting on a star would have a much faster expansion. I guess I'm implying that the Hubble 'Constant' is not constant, but depends on the amount of matter falling into our 'parent' Black Hole.
@narfwhals7843 11 meses atrás
The hubble constant is already not constant. It's really the "hubble parameter". It is only constant across space(as far as we can tell), not time because the expansion rate changes with density.
@Enjoymentboy 11 meses atrás
Once, when camping with friends and being FAR too high, we got into a conversation about this sort of thing. Somehow we got onto the line of discussion where the act of matter and energy being compressed by a black hole could directly relate to a corresponding expansion of space/time and that this might result in a point where all matter and energy had been "eaten" and nothing but black holes were left in the universe. At that point they'd begin to slowly evaporate into Hawking Radiation stopping the release/creation of dark energy and this would result in the expansion of the universe stopping and reverse, beginning the "big crunch". As I noted above we were all very, VERY high at the time.
@jusore 10 meses atrás
Exactly, so that's the quantum foam limit in its elastic tension. I often envision black holes tugging at the fabric of spacetime and spacetime like auxetic quantum foam, and black holes as factories of spacetime, turning matter into virtual quarks, because stars are said to fuse simple to more complex atoms, and denser stars are made of simpler elements, like neutron stars, it makes some sense to me that black holes make quarks stop being particles and go to be virtual particles. And gravitational waves, and matter that is converted into gravitational energy, contributing to the expansion of the universe. Look up a video titled "Auxetic Foam Research at HPMI" to see what an auxetic foam sample looks like. If the connection of black holes with dark energy is verified, the warp drive would have to be revised. Dark energy is said to be basically antigravity. It's something important for interstellar travel in reasonable time.
@BobOgden1 11 meses atrás
11:50 Spooky action at a distance? You're making the baby Einstein cry
@michaelniederer2831 11 meses atrás
Well done. Nice nod to Dr. Becky. Thanks.
@ThompPL1 9 meses atrás
15:14 . . . Excluding Zero CC @ 99.98% : " So you're telling me there's a CHANCE . . . . Yeeeaahh ! " 🤣
@blablwy 11 meses atrás
Been looking forward to this video since the paper dropped. That was quick considering all the animation and editing, thanks spacetime!
@pikiwiki 11 meses atrás
thanks spacetime, for everything you do
@harryflashman3141 8 meses atrás
My brain was blown as usual. Thanks, Matt.
@Xabraxus 11 meses atrás
Hit the nail on the head at 0:00, I woke up just the other day and put some powdered creamer on to my coffee and observed the floating mounds of creamer create a swirl within the coffee as it dissolved on top of the meniscus and sank into the coffee, that gave me the idea that our universe might just be sitting on top of a higher dimensional 'meniscus' and the gravity that sinks into it causes our galaxies to swirl in ways we can't explain without dark matter.
@bechtel35 10 meses atrás
This is the best channel I have ever seen on youtube.
@Sad_King_Billy 11 meses atrás
Love when my favorite space channel shouts out my other favorite space channel!
@korakys 11 meses atrás
That opening was brutal. Got 'em 😂
@HolyAwe10 11 meses atrás
I've seen almost every of your videos, for past 6-7 years, each of them terrific quality. Never bias, always factual with passion and realnest. Awesome content! 😉😁
@JacobAsmuth-jw8uc 11 meses atrás
Other than that weirdly pro Max Tegmark video that came out conveniently just a week after it was found that his organization was founding nazi extremist groups…
@himynameis3664 11 meses atrás
Agreed. Had to laugh at a guy in one of the comment replies above you saying all Matt does is make up "pure unadulterated nonsense", and hopes that people that understand science don't see it and that enough people that don't understand the science believe his "nonsense".
@protmythic7972 11 meses atrás
And what have you learned in 7 years?
@MGFDSF62 11 meses atrás
I'd argue that PBS space time has a clear pro-reality bias.
@LuisSierra42 11 meses atrás
@@protmythic7972 it's a bot
@octavianova1300 11 meses atrás
"99.98% confidence" is kinda just a sneaky way of spinning "only 3 sigma" lmao
@peterkelley6344 11 meses atrás
Congratulations on acknowledging Dr. Becky. Wish i could listen to both of you tear apart an astronomy topic sometime.
@LuisAldamiz 11 meses atrás
Gliner wears a beret = Gliner must be right... At least on first sight, sounds solid to me. Paraphrasing a saying from my country: "wear a beret and hitchhitke across the galaxy".
@jahu33 11 meses atrás
PBS Space Time - still the best
@harshwardhan8259 11 meses atrás
Great material to fall Asleep
@mrping2603 11 meses atrás
I always appreciate the detailed visuals. Keep up the good work!
@ds_the_rn 11 meses atrás
I love the “Heat Death is Coming” shirt!!!
@PurpleChevron 10 meses atrás
That's the coolest Godzilla shirt I've ever seen. And that's saying something.
@veryroomy Mês atrás
I hope this guy is remembered next to educators the likes of Bill Nye and Carl Sagan
@borisborcic 10 meses atrás
Thank you for this beautiful summary of the background. I find some analogy between this idea of equating DE to SMBHs, and OTOH a quip I came up with a dozen years back, in the form of the bold assertion that _Dark energy is ambient pollution from alien warp drives!_ -- with diverse motivations ranging from the humorous take on Fermi's Paradox; through an objection made to a subliminal perception (likely to be widely shared) that the focus on uncovering some Earth 2.0 that's expected of exoplanet research, was premised on a secret project to escape by relocating there (rather than address) a self-inflicted destiny of runaway greenhouse effect attributable in good part to vehicular emissions; to a more direct if vague analogy between _accelerating_ expansion and _runaway_ greenhouse effect; and, finally; to alluding to the idea that _the negative gravity (and negative self-gravity!?!) of the massive amounts of negative mass-energy postulated to enable FTL Alcubierre drives, leads to expect that in case of a leak or loss of confinement, the negative mass-energy would in fact race to mimic the uniform distribution and influence currently attributed to dark energy._
@borisborcic 10 meses atrás
I'd concede however that the satire directed by this quip at the expectation of our relocation to some Earth 2.0, is at risk from Poe's Law. A picture emerges of a Universe polluted by the failures multiplied over eons, of desperate attempts of planetary civilizations to save themselves using unstable approximations to an Alcubierre drive...
@jusore 10 meses atrás
I often envision black holes tugging at the fabric of spacetime and spacetime like auxetic quantum foam. Look up a video titled "Auxetic Foam Research at HPMI" to see what an auxetic foam sample looks like. If the connection of black holes with dark energy is verified, the warp drive would have to be revised. Dark energy is said to be basically antigravity. It's something important for interstellar travel in reasonable time.
@Lukesab3r 11 meses atrás
New king of massive - Matt - For he is mathive!! Jokes aside, you are epic. Keep up the awesome and thanks for breaking down this new theory for us!!
@Niinkai 11 meses atrás
Black hole interiors are also coupled to healing pyramids, ancient aliens and the ghost of my dead cat. Crazy how nature does that!
@richardconway6425 11 meses atrás
Your cat too??!!
@ericgraham8150 11 meses atrás
Ghost in the Cat!
@Ytinasniiable 7 meses atrás
These sorts of things appear to occur on scales one might think are irrelevant to any form of society, but it's in coming up with and solving the various equations associated with these ideas and theories that some of the world's most powerful computers have been and are being developed; and to me, that's the *coolest* part of theoretical physics and cosmology
@beardedzeus1337 11 meses atrás
My theory for the "cosmological coupling" is in relation to how stars produce protection their solar systems. SMBHs produce a similar protection which surrounds the mass of the galaxy itself which is why it doesn't expand with the rest of the universe and would fall in like with dark energy holding galaxies together.
@Tzphardi 11 meses atrás
Very insightful and well argued/thought out, thanks matt!
@Stile4aly 11 meses atrás
Hooray for the shout out to Dr. Becky. Love her!
@damcof123 11 meses atrás
The "what if...?" question is the most important one
@CedarAce1000 11 meses atrás
I really appreciate the detailed breakdown at the end! Great to see specific reasoning as to the strong and weak points of a result :)
@erdemmemisyazici3950 11 meses atrás
Currently the places to hope for a real space craft engine capable of taking us into the cosmos are in a few places as I understand it. There is little to no hope in negative energy being a thing. What does a graviton look like is definitely going to answer some questions. Are there fundamental forces we haven't discovered yet is lastly also super important. Fact of the matter is, light speed is not fast enough. We need to understand energy better. I suppose we will eventually start blowing up anti-matter bombs to observe conditions no longer existent in our current state of the galaxy and unlikely to occur again. Maybe some answers will be observable we haven't considered in such high energy events we can collect every possible information off of.
@i_booba 11 meses atrás
I’m glad Matt wasn’t totally convinced of this paper’s claims, and neither was I. Of course, it’s nice to hear alternative takes from time to time, especially concerning things like dark energy, which we still don’t know a lot about. But at the end of the day, the simplest explanation for dark energy is it is just the inherent energy of the vacuum of space. Connecting it to black holes as some sort of grand unification seemed like a big stretch to me. Still, it was interesting to hear about and pick apart nonetheless.
@shawnholbrook7278 11 meses atrás
I like watching your shows. I also like Dr. Becky and lots of PBS. Thank you all!
@JeovaneML 11 meses atrás
Just a thought: this kind of widespread interference “at a distance” may be related to quantum entanglement
@skywalker541 11 meses atrás
Always nice to see Soviet scientists given the credit they deserve!
@jengleheimerschmitt7941 10 meses atrás
We couldnt have done it without Tsolikovsky
@internetprinting4314 11 meses atrás
I love when I comment in these videos and 6 months later the video comes out proving it.
@SeraphimKnight 11 meses atrás
This paper sounds like a strong case of "having a conclusion before making the experiment" to me.
@minibuns5397 11 meses atrás
Yeah like which publication
@DFloyd84 11 meses atrás
"Come up with a theory that explains a thing, design experiments to test that theory, and record the results" are the basics of the scientific method, but another, just as important, part of the method is "rigorous adherence to honesty in your experiments and the willingness to accept when your theory is flawed."
@ericanderson9706 11 meses atrás
@@DFloyd84 But wait, the theory is "99.8%" non-flawed! Close enough for jazz, as they say. And cosmology evidently.
@dalemoses2443 11 meses atrás
I had the same response. The idea that old galaxies should have smaller black holes seems weird. Assume a galaxy that does not accrete more mass. Over time it’s black hole should increase in size. Which would make “black holes grow faster than their galaxies”
@elliott614 11 meses atrás
Or just testing for correlation? It doesn't really say anything else as the space of explanations for that correlation (and all scientific explanations/theories-other-than-equations) is infinite, and we generally just use Occam's razor with no deductive logical basis to use it, sometimes more complicated explanations are the correct ones (though in the case of simplified models, it's more precise to formulate Occam's razor in terms of number of assumptions, and simplifying assumptions are assumptions)
@brown2889 10 meses atrás
This is The topic I have felt may explain what so many are looking for. Great discussion and If anyone is able to crack this problem I wouldn’t be surprised if DE Is coupled to galaxies and black holes. But this problem is the size of the universe so there’s that. Good luck. I’ll be watching.
@noorulali1184 10 meses atrás
Gravitational waves + quantum mechanics for quantum gravity is what I imagine to be connected
@jusore 10 meses atrás
I often envision black holes tugging at the fabric of spacetime and spacetime like auxetic quantum foam, and black holes as factories of spacetime, turning matter into virtual quarks, because stars are said to fuse simple to more complex atoms, and denser stars are made of simpler elements, like neutron stars, it makes some sense to me that black holes make quarks stop being particles and go to be virtual particles. And gravitational waves, and matter that is converted into gravitational energy, contributing to the expansion of the universe. Look up a video titled "Auxetic Foam Research at HPMI" to see what an auxetic foam sample looks like. If the connection of black holes with dark energy is verified, the warp drive would have to be revised. Dark energy is said to be basically antigravity. It's something important for interstellar travel in reasonable time.
@caseyallen-bf6vk 11 meses atrás
Rewatch the video but this time keep your focus on Matt's hands... his hands expressions are pretty spot on
@YamiVT 11 meses atrás
Seeing Dr. Becky being shouted out is so cool!
@fraliexb 11 meses atrás
I'm hyped you're doing this video. I'm interested in this theory.
@ganymedemlem6119 11 meses atrás
The part of me that wants it to be true because of how neat of a solution it would be says "maybe it's the universe trying to remain topologically homogeneous?" But the desirable answer is often not the real answer.
@hellfire66683 11 meses atrás
In the end the universe is going to do what it is going to do even if we think it shouldn't be able to do it.
@paulmichaelfreedman8334 11 meses atrás
Which made me think of Matt's topic last year about primordial microscopic black holes with planck size. What if they are the even distribution?
@oskarskalski2982 11 meses atrás
​@@paulmichaelfreedman8334that's what I thought when he told about need for BH to be evenly distributed. But what about Hawking radiation, it should cause BH to shrink.
@memyshelfandeye318 11 meses atrás
@@oskarskalski2982 But how big must a BH be to grow more from universe expansion than shrink from hawking radiation? Where would be the equilibrium?
@renzaldarevil2244 22 dias atrás
this is the yet the best example for the science economy traditional for everyone and also this channel👏
@vistotutti6037 11 meses atrás
Great explanation of the Farrah-Croker et al proposal ( That I can understand ) 👍
@deusexaethera 11 meses atrás
Your use of the abbreviation "SMBH" was confusing at first, because it could mean "Super-Massive Black Hole" OR "Stellar-Mass Back Hole".
@LuciFeric137 11 meses atrás
Excellent as always. Fascinating topic.
@Defort-jd8xe 2 meses atrás
„Nobody else ever talked about this“ isnt a really good counter-argument lol
@dionysusbacchus4321 11 meses atrás
Thank you for putting that famous paper in the proper and historically accurate context - especially since BRvid hosts quite a few popular, rushed and inadequate "reviews".
@HawkleyFox 11 meses atrás
When I heard this news, my first thought was, "oh, that makes sense." It's still what I think, though. My reasoning is: if space is boiling at a quantum level, and there's no reason to believe it still doesn't in immense gravity wells (Hawking radiation), then it's doing so in extremely compacted space. If there's no room for a pair of virtual particles to "spawn" in that compacted space because there's too many other particles there already, then it could cheat and create new space to facilitate it's creation. Then when the particles annihilate, you basically end up with "negative energy" in the form of new space that seeps out of the blackhole. That still leads to all kinds of other questions, of course...
@mrglobemcglobeglobe8318 11 meses atrás
Great episode - love hearing you comment on other people's papers.
@agusain8578 11 meses atrás
That was a very good starting disclaimer
@lamboking8able 11 meses atrás
So, I'm not sure if I'm just repeating what was said in the video bit did not hear it explained in this way... but what if the expansion of the universe was actually due to hawking radiation. Hawking radiation could be the dark energy as supermassive black holes and the countless other black holes we've found decay away, energy is poured back into the fabric of space time. And the reason it's possible is because black holes already tilt causality on its side (thinking of the light cone theory) but when something is added back into a more flat plane of space time our universe expands a but. I don't know if the math will agree but if hawking radiation could contribute to the expansion of the universe from quantum teleportation of the atoms outside the black hole and from the constant effect of that. I think that'll be cool.
@ericmatthews8497 11 meses atrás
The scientific Method in a couple of sentences... "Now that we have that straight, let's tear it apart..." and "It's probably not true, but that doesn't mean it's not valuable"
@andreascj73 11 meses atrás
If we use the inflated balloon as an analogy on expanding space, the geode black holes work like pressing a finger (or other object) on the balloon to get it to expand its surface with the existing gas inside it?
@grayshadowglade 11 meses atrás
Oooo I like this analogy since you could apply it to all mass actually. Most mass would have an impossibly small amount of push back against that expansion thus no visible expansion, but a SMBH would have a significant amount since it represents an impossibly huge cumulative pressure on the surface of the balloon by a fixed volume. You might have something to work with there.
@jaranth 11 meses atrás
Super fascinating, I'd never heard of this!
@chrislong3938 29 dias atrás
Great video as always!!! I've often wondered if black holes get denser closer to their center! I've also wondered about this topic as well, except I was thinking that maybe there are tons and tons of smallish black holes closer to the galactic center and so they, along with their gravitational effects, are not easy to observe and measure. Also... Wouldn't Super-Massive Black Holes at the centers of galaxies have to have slightly more mass than everything else in their respective galaxy? If that is true, isn't it a bit of a coincidence that all, except for maybe irregular galaxies, would be this way?
@EliteRoxor 11 meses atrás
My physics teacher: so, what did you learn from this video? Me: black holes - What about black holes? - They are holes.
@Kernovian1964 10 meses atrás
LOVE the teeshirt, Matt!
@thebourgeoispunk 11 meses atrás
This video definitely has me wondering if there are black holes in the Bootes void and other voids
@andrewsapuppo479 11 meses atrás
If their claim, black hole growth is coupled with the expansion of the universe is true, then could they potentially figure out a way to calculate the vacuum energy density using this idea helping prove their theory? For example, by using Hawking’s equation for black hole entropy they could try to relate the vacuum energy density (VED) to a black holes surface area in the formula then rearrange the formula to come up with a new prediction of VED and see if this matches observed values.
@Jezee213 11 meses atrás
Yes, I was wondering about Hawking Radiation.
@jusore 10 meses atrás
I often envision black holes tugging at the fabric of spacetime and spacetime like auxetic quantum foam. Look up a video titled "Auxetic Foam Research at HPMI" to see what an auxetic foam sample looks like. If the connection of black holes with dark energy is verified, the warp drive would have to be revised. Dark energy is said to be basically antigravity. It's something important for interstellar travel in reasonable time.
@penciljazz 11 meses atrás
Absolutely. The distance between black holes is increasing from momentum, and being the strongest gravitational masses in the universe, by far, they pull everything along with them in their expansion. Next, you might find that the expansion of space between black holes might be faster than the expansion of the surrounding universe, because they don't pull everything in at the same rate as they are moving away.
@zacharywong483 11 meses atrás
Fantastic video, Space Time team!
@thomassicard3733 11 meses atrás
What if lead IS gold? What if day IS night? What if light IS dark???... Ooooh,... that last one was good!!!
@4or871 11 meses atrás
Another view on Hubble tension: This formula might reveal dark energy being the difference between n=0 (Black Hole?) and n=1 in the Schrodinger solution of the universal wavefunction. I try to combine the cosmological constant and the Schrödinger solution on the Planck scale. I used Planck units. At the end I went back to SI units to compare with the measured vacuum energy density (0.63 10^-9 J/m^3.) Combine: 1) Einstein, cosmological constant 2) Schrödinger solution 3) Planck units Result: - vacuum catastrophe solved? 1)Einstein, cosmological constant Λ = (8π 𝐺 ƐΛ)/(𝑐^4) Planck units: G=1 c=1 Λ (6.1871424 10^34)^-2 = (8π ƐΛ [PlanckEnergy/PlanckVolume] 1.1056 10^-52 (6.1871424 10^34)^-2 = 8π ƐΛ 0.001149 10^-120 = ƐΛ 0.1149 10^-122/ ƐΛ = 1 2)Schrödinger solution, n=1 (ℎbar^2 𝑛^2 𝜋^2) / (2𝑚𝐿^2) = E Planck units hbar=1 n=1 m= mPlanck =1 L= LPlanck=1 0.5 𝜋^2= E 1= E/0.5 𝜋^2 3)Einstein, Cosmological Constant = Schrödinger solution 0.1149 10^-122/ ƐΛ = 1 = E/0.5 𝜋^2 0.1149 10^-122 0.5 𝜋^2= ƐΛ EPlanck EPlanck =1 0.1149 10^-122 0.5 𝜋^2= ƐΛ 0.567 10^-122 = ƐΛ [PlanckEnergy/PlanckVolume] 0.567 10^-122 1.9561 10^9 /(1.61625502 10^-35)^3= ƐΛ [J/m^3] ƐΛ = 2.627 10^-9 [J/m^3] Measured: 0.63 10^-9 [J/m^3] I am looking forward to your response.
@t.c.bramblett617 11 meses atrás
My intuition is that something about dark energy and the massive structure of the universe has something in common with a foam, where the empty spaces are expanding as the "seams" are contracting. But this is totally unbased in anything like expertise or math, just a feeling... and those are best not trusted, but instead should be tested tentatively. It is really hard to get a grasp on these things (like black holes) that break our reality models, and to put them into a larger picture without distortion. Thank you so much for these constantly enlightening videos!
@EnglishMike 11 meses atrás
I believe the prevailing thought is even simpler -- that space itself contains energy which contributes to the expansion of the universe, and thus the more space there is, the greater the energy and thus the greater rate of expansion. Adding seams would seem (sorry) to complicate things unnecessarily, but then I know as much as you do about all this -- i.e. almost nothing!
@jusore 10 meses atrás
It would be nice if it were true. I often envision black holes tugging at the fabric of spacetime and spacetime like auxetic quantum foam. Look up a video titled "Auxetic Foam Research at HPMI" to see what an auxetic foam sample looks like. If the connection of black holes with dark energy is verified, the warp drive would have to be revised. Dark energy is said to be basically antigravity.