The Strange Mystery of the Hubble Tension
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- Опубліковано 23 кві 2024
- An exploration of the mystery of the Hubble Tension in Cosmology.
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JMG is the GOAT of bedtime space and science videos
That background music.
No lie detected
Can confirm. Often use these videos to both scratch my own speculation-itch, and also put the wife to sleep at the same time
I feel like saying he is just here for relaxation is doing a real disservice to the actual amazing content of his videos.
A title shared with the narrator of history of the universe
It's like having a cool dad that reads you bedtime stories, but he's also a space nerd.
I introduced my dad to the channel precisely because of that reason 🙂
That is it exactly. Expertly put! 🎯
Bang on this comment is
I don't think anyone's ever stated it so accurately before!
In which we liiiiiiiiiiiiiiiiiiiive.
Liiiiiiiiiiiiiiiiiiiiiive
Liiiiiiiiiiive
@@andrewmccreary1021 liiiiiiiiiiiiiiiiiiive
New telescopes deepening the mystery isn't a bad thing. It opens the door to new ideas and a better understanding of the universe.
I don’t think it was interpreted as a ‘bad thing’ at all in this video.
Latest Webb data closed the difference.
The big issue is the tiny error bars measurements being very low when yet different measurements of the same thing do not overlap. Showing that the errors bars do not match reality.
one two three JMG
I be clickin
Hail to JMG, a cosmic beast,
Charting the stars, from West to East.
Each video drops, we rush to see,
Marvels of space, presented with glee.
Galaxies swirl in his digital grip,
Through time and space, we joyfully skip.
With JMG's guide, we're never lost-
Exploring the void, no matter the cost!
His wisdom vast, a beacon bright,
Illuminating the darkest night.
Cheers to the mind that knows no bounds-
In every video, wonder abounds!
Lol
Calvin & Hobbes fans already know that the Big Bang should be renamed The Horrendous Space Kablooie
Inflation is one of those things where I don’t have nearly enough education to not go with it…
…but if years from now we find out that the rules didn’t change, we just didn’t understand XYZ, I wouldn’t be surprised.
Personally, if I were a teacher, I'd be using JMG videos as a conversation starter at least once a week.
"Space isn't that far away. You could drive there in an hour. If your car could go straight up." ~ Fred Hoyle
So we need flubber tek?
Depends at what speed
heh
@simonwilson3115 dumb comment
@@simonwilson3115 100 km/h (~62 mph). Search for Kármán line.
JMG does it again! The whole city comes to see! 🍿
Calm down
@@ihateyoutubecomments8100I don’t care what you think.
Imagine coming _here_ of all, to have a little pop at someone 🤯 jees
@@a.j.b.8658Sorry that a stranger enjoying something triggers you so much, loser. What a pathetic life you live.
The Sophon's at it again.
Those nuckas go hard no cap fr fr
Once JMG drops another video, I get my popcorn ready. 🍿
popcorn o0
3:07 but we don't know that for sure, do we? its an assumption. we might be expanding into a layer of cheese as we are baked in a great lasagna destined to satisfy a gluttonous extra-galactic cat in the coming great gulp...
It highlights our innate assumptions, the joke is your proposition is likely as anything else....
He gets it, give him some grant $
Late night drop is a w
I think the expanse would be better than the “big bang”. It both describes the action & the universe itself. I’m really tired of anti-science, often creationist, critics with their “tornado in a junk yard” & “explosions don’t create anything” soundbites that both demonstrate their ignorance as well as a grifty desire to attack data for cash, tithe & clout. The title “big bang”, intended as a pejorative, has achieved that goal. I’ve often thought that expansion is the natural state of the universe that was initially hindered by gravity which has now been overcome. Maybe there is an “outside” to the universe that has an attractive mechanic where the universe is like a drop of oil on water rushing to occupy the largest area while getting thinner as it does. Maybe spacetime has expanded all along while the mass within has been constrained. The void beyond could be exponentially larger with the visible parts lagging behind.
Hopefully someday someone will come up with a testable hypothesis of what, if anything, is "outside our universe".
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Band : " American Aquarim "
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We Burn Too Long . We Flicker And Die .
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But the expanse isn't an accurate term either, because the only thing expanding is the space between objects, not the objects themselves. Particles, atoms, molecules, Humans, Planets, solar systems, galaxies, etc aren't expanding along with universe. Inflation is a more fitting term, it's like putting a bunch of tiny balls in a water balloon and filling up the balloon with water. The balls will stay the same, maybe move around, but everything else will expand. Problem with inflation is that it implies an outside force working on the universe "inflating" the universe, Which implies an "outside the universe"... which starts getting us into metaphysics. Which gets us full circle back to a being or force we would consider a god.
Well that's metaphysics, and everyone is mortified of that for some reason@@alexhajnal107
@@A_Stereotypical_GuyThey will be. In 10^100 years. It’s called the Big Rip.
Thank you so much JMG, I just found out this morning that my sister had passed away, and somehow listening to your always wonderful videos gave me a tremendous sense of peace. Many thanks again. ❤
I have always felt that if General Relativity is correct, and Expansion is indeed happening then the "Horizon distance" which corresponds to the observational limit is also a gravitational limit too. This horizon could hide essentially infinite mass beyond that horizon.
Correct. He talks about this at the 7:35 mark. He calls it an under density.
Maybe the expansion of our desktop wallpaper up in the sky is unstable because the simulation is losing cohesion...? 🤔
Right when I was about to fall asleep
Sleep crew we here
Done
Ill take your suggestion i been fighting it for q couple hours. Perfect sleep material just drop 😴
Now we have to stay awake until Halloween.
She hubbled my tension
Thanks Nate
Spooky and strange, bring it ON, John!🔭
The first 2 minutes of your narration. Every word.... Mind blowing
Was just about to go to bed, but my hands reek of garlic from making tzatziki for tomorrow, and JMGOADier dropped another knowledge bomb.
I wonder, since light can be pulled in by gravity. Then, is it possible that the speed of light can change over the vast distance of the observable universe? Could that cause the red shifting we see?
The speed of light doesn't change, it's wavelengths get stretched. Basically it's amount of energy is reduced.
It isn't the speed of light that changes, but the frequency.
And yes, it gets redder as it climbs out of a region of higher spacetime curvature (gravity), toward a lower one.
The reverse is also true, there is such a thing as gravitational blueshift.
The change is small, however, unless there is an extreme difference in gravitational potential.
I don't believe that the universe is expanding, in fact I believe that the absolute reverse is actually the case! I think that every bit of alluded-to, non-existent matter is shrinking proportionally all throughout the universe at the same rate and at the same time. This also accounts for the red-shift. More on this if you are interested.
I don’t know what I do without your regular content. Seriously you bring me so much peace and joy
Aw man, you’re not really gonna make us wait 6 months to find out what this “really spooky subject” is, are you? Can you give us a hint?
Things that may go bump in the night, but when you look for them, there is nothing there.
@@JohnMichaelGodier Hmmmmm. 🤔 Shadow people? Wait, I got it, shadow people are real and they’re the source of all the dark matter. Am I close?
Oooooh😮
@@JohnMichaelGodier Spooky action and non-existence?
Good night everyone
Good night! 😊
The information is great. Giving us a new way to think about these things is even better. Thanks.
I could listen to your videos all day ❤
I look forward to your thought provoking content. Thank you!
Loved the neat depth effects at the start of the video, nice touch!
The idea that the rules of the universe can change is wild. Definitely opens the door door a lot of interesting ideas for speculative fiction. Reminds me of the classic quote "And with strange æons even death may die."
I've also been having a spooky thought as of late. If the universe is truly infinite that must mean there is an infinite amount of John Michael Godiers. Terrifying indeed.
Fantastic video, John! Thanks a bunch!!! 😊
Stay safe there with your family! 🖖😊
Brain melting. Great work!
My opinion: The expansion is caused by two possible effects:
1) It's an effect of gravity that we have yet to model and understand. It's not the same everywhere because matter density is not the same everywhere. It becomes very constant when examining huge areas of the cosmos because the matter density becomes fairly consistent over such large areas.
Or 2) It's caused by supermassive blackholes either by a more profound strength of gravity as in idea #1 or by another more exotic process we have yet to consider.
Great topic and explanation of it!
John, that's a great description of the beginning of our Universe.
commenting here to improve your chances with the algorithm. i think you're great!
His chances are fantastic and only improving! Source - me
2:00AM spooky cozy space bedtime, thank you sir I love these videos so much.
“Dark energy” is going to some day be as archaic as the bodily humor and miasma concepts of yore.
See here is my main issue that we still haven't pinned down, even close "near-by" stars like Alpha Orionis (Betelgeuse), we can't seem to make up our mind on how far it really is from us, I have seen everything from just 300 Light years to 800+ Light Years given on various websites for the distance to it. This isn't just a Betelgeuse thing but other stars too. My main point is if we have such a damn high error bar for something this "close" - how the absolute heck are we at all "okay" with measurement details millions, billions of light years out, I can only imagine the error bars only get more out of whack than we want to admit to ourselves at this point in the game.
We dont really know. There is a theory called the tired light theory, it explains a lot of things involving expansion that doesn't force us to invoke this ridiculous idea of dark energy.
You are the only way i sleep thankyou john ❤
Mind blowing stuff!
Halloween is my birthday and I'm excited to see that spooky video!
5 hours for a notification, thanks 😮 I don't like being late for a JMG party 🥳
UA-cam really is terrible at notifications. On purpose I suspect.
Brilliant !
The main part of the hubble tension is that the error range(the +/- factor) on measurement has narrowed with better telescopes and detectors that the measurements now no longer "overlap".
Meaning the two main methods now disconnectively disagree with each other.
Dr Becky has a recent video on the latest JWST data and whether it indicates new physics or a "ladder of measurement" error.
Thanks for this video! The expansion of the universe is such an incredible series of events, it wouldn't seem too odd if it turned out there was something missing in our current knowledge, that explains the Hubble Tension. Personally I find the idea of Dark Energy rather spooky. It effects the entire universe, and it didn't start until (as you said) nine billion years after the Big Bang! Sure physics worked differently at the beginning of time, but that's reassuringly far back in the past. Dark Energy didn't start up until nearly five billion years later. What changed? Will it change again? Is it still changing?
Perhaps it is so easy as a multi-verse where the gravity from other universes are beginning to pull at us, as our universe is "slowly" expanding we are coming closer to other universes that is also expanding
I love your channel!!! Greetings from Sweden!!
Mår lajk Sverige
Oh man, you can't tease us like that😭 I am anxiously awaiting the Halloween episode
I am giving this out(but I require an honorary mention in your paper):
Time slows down near massive objects -> In the moment 0 seconds of big bang there was almost infinite mass and therefore time almost "did not move" (singularity) -> the universe started to expand (what caused that: do not know), the first second took almost an eternity to an outside observer (this idea requires more work in separate paper) -> since then the universe is expanding, so there is less mass per unit of spacetime over time (be careful, we have a concept of two separate times here); therefore it is not the universe that accelerates it's speed in 3 dimensions of spacetime, no, it is the time itself that accelerates over time! Because there is less and less mass to bind it. This would explain different local rates of expansion - the time acceleration is different due to local mass differences.
This actually offers ways to prove or disprove it.
For reference: I am curing my headache in a hot bathtub.
To spread: Elon Musk, Neil deGrasse Tyson, China, Xi Jing Ping 😂
My headache is gone 😊
Edit: a different idea: it is not universe that accelerates - it is our local time that slows down as we move closer towards a supermassive black hole.
Hey john love this stuff ... tbh the other night the constant is there life in the universe was getting kind of much... i get its one of the bigest questions for mankind but i love to hear about other space science ... since i had that thought its been nothing but
Thankyou ! 🎉 vbeen here since like day one
UA-cam is so weird. I just got a notification for this upload, 2 days late. I thought it was weird you uploaded in the morning
That is a really good summary.
Thank you again for using the creepy music again! It’s just so much better for a stronger dramatic effect to the videos.
Thank you John.
Any update on the book Sir JMG
Heavily in the process of revision but basically all there now, I'm just refining it. Then it's off to the editor.
I don't think I've ever been so excited for Halloween this early in the year!
It is funny how we think we know the facts and then we don't. That has been happening for so long. Can we agree we just have our best guess now and all the times before and after.
I believe it was Minute Earth that said that instead of a Big Bang it was more of an "everywhere stretch". The theory being that the universe didn't expand into empty space, as any empty space is already part of the universe. Instead everything which already is part of the universe was stretched thinner.
Can't wait for Halloween and your spookieness. How good the channel is, how sad my life is, or some combination thereof.
Seriously. A six-month tease? 😢
Absolutely pumped for Halloween night!
Can already feel a chill late October windy night with leaves rattling around my feet...
JMG PLEASE PUT YOUR BOOKS ON AUDIBLE. We love your content and voice!!!!
If space is expanding, is earth, the sun, the solar system and we also expanding?
Everything is expanding save my bank account
Space is expanding everywhere. It's just that gravity (and other local forces) keeps our bits together. Eventually, though, space will expand so rapidly that it will tear apart the fundamental particles that make up our atoms.
My understanding is technically yes but the effects of gravity, atomic bonds, etc. by far outweigh it to the point that practically (and measurably) the answer is no. Since the cause of the expansion is unknown it's hard to say definitively though, even on a theoretical basis.
Ockham April, a phenomenon resulting in JMG being spooky in spring based on little evidence to do so.
Oh thank goodness for JMG
Bottom line is,WE KOW NOTHING. 🤘😆🤘
JMG actually has me looking forward to Halloween, which isn't even a thing in my country
I'm not sure that dark energy, some unknown form energy, exists. I think it's more likely that we just don't fully understand what's going on.
Hence, the "dark" in dark energy. That means that whatever force, energy, is causing the expansion is not understood, or dark.
0:15 Parallax Nick's Best Cameo.
Sounds to me like we are just not in the center of the expansion. This could be used to detect where the center of the universe is, which could give us clues
Wow, I can't wait to see that Halloween special.
Now I have to survive in this universe until at least the Halloween video!
The expansion of the local area is easy to explain. Everyone else is trying to get away from us as fast as they can
thanks for always having a video up for me to watch when i’m on lunch at work or when it’s bedtime. you’re the GOAT
I just love listening to all of the cool space news from all of the big named scientists and science explainers (like JMG. He almost dumbs stuff down enough for me but Matt, from PBS again, I can’t think of his last name for the life of me right now for some reason, is way above my head a whole lot of the time. That’s just fine though. He does an excellent job for those much smarter than myself). They just give me great stuff to think about rather than dumb stuff like fashion or other things that just don’t matter in the long run. I do like pop culture but it’s fleeting and not really relevant in the long run. It’s interesting kinda for looking back on as history, but it’s not nearly as cool as finding out that we just got a signal from space that we can’t understand and then someone working out how it’s not aliens, it’s a new bit of science that we just didn’t know about previously.
Would love to see you do a video on the observable vs unobservable universe.
JMG saying it gonna be a good year for his videos actually gives me more hope that most things when i look around todays world. Last 4 years has been not good. I dont want to do 4 more.
Tonight was a good night.
Love it
I'd love to see you talk about enteopic gravity and its potential relationship with dark energy.
So we're in a relatively quiet solar system, in a relatively quiet part of the galaxy, in a relatively quiet part of the universe? Fermi Paradox?
Fermi suburbia.
Wow John talk about a cliffhanger. I'll be here though, come Halloween, as usual.
The only universal constant, is the speed of JMG...
You’re voice is ASMR and I’m hear for it. You need to be a science narrator broda!
Thanks JMG. Please could you do a video on why the Big Ring of galaxies might exist as a structure (and also the Great Arc).
Interesting !
Rock on jmg🤘🏻🤘🏻
Lets goo!! Going to bed in 15 minutes
I'm excited for Halloween
thinking about these things always awokes a very weird feeling in me.. imagine we found out one day that our universe is part of a multiverse.. then the there would simply be the next question: what comes after the multiverse? it just never ends
Mr G needs to do a space documentary ❤🚀
Another stunner from JMG thanks 🙏. If the speed that objects are moving away from us is based their distance from us, and that movement is due to spacetime expansion, doesn’t that mean that very, VERY distant objects would be moving away from us faster and faster the further out you get? To a point where at the very furthest distances objects are moving away infinitely fast?
I hope I live to see the day that JMG gets Veritasium subscriber numbers! 🤞
Could the behavior of the expansion of the universe be explained by a drag force? Maybe the “recent” acceleration is like breaking the sound barrier and lessening the drag force?
Intersted in your take on the breakdown of modern physics with variable speed of light. Absolves dark energy and matter. We've not just been wrong but on the wrong track for a long time.
You can't just tease us like that John!
Allright broseph, I'm gonna do SUPERMIND. Gotta finish The Dispossessed first. You're on deck.
First in which we liiiiiivvvvvveee!!!!