Black hole cosmology suggests that the Milky Way and every other observable galaxy in our universe is contained within a black hole that formed in another, much larger, universe.
The theory challenges many fundamental models of the cosmos, including the idea that the Big Bang was the beginning of the universe.
It also provides the possibility that black holes within our own universe may be the boundaries to other universes, opening up a potential scenario for a multiverse.
Mine blown 🤯
Oh sure but when I say this I’m “too high” and need to “quit smoking.” I been told y’all.
Chat is this real?
black holes all the way down?
So it might be turtles all the way down?
🐢🐢🐢Turtles 🐢🐢🐢
But if this leaves anyone in a philosophical mood, I leave this video on a comic book villain that unpacks into a metaphysical wonderment.
if you can call that living
Last few paragraphs…
Shamir noted that an alternative explanation for why most of the galaxies in the study rotate clockwise is that the Milky Way’s rotational velocity is having an impact on the measurements.
“If that is indeed the case, we will need to re-calibrate our distance measurements for the deep universe,” said Shamir.
"The re-calibration of distance measurements can also explain several other unsolved questions in cosmology such as the differences in the expansion rates of the universe and the large galaxies that according to the existing distance measurements are expected to be older than the universe itself.”
That’s leading me to think that that’s actually the more probable explanation, and the black hole idea comes in a distant second in terms of probability, but is much more attention grabbing/sensational/click-baity.
The black hole idea is actually weirdly solid, its a case of the maths says we definetaly should be but observation and just intuition says its crazy. If you consider the event horizon to be the surface of a volume, black holes get less dense as their radius increases, you can have a black hole with the same density as rock, water, air, even the miniscule density of the gas in a vacuum, so long as teh black hole is large enough. The average density of the observable universe is higher than the density of a black hole the size of the observable universe so technically we should be in one.
Technically this doesn’t have to affect anything, larger black holes can have gentler gravity gradients and nothing in physics actually demands all the mass inside be concentrated at a miniscule central point, it just works out that way for black holes of the size we’ve seen so far. So the entire universe could be a black hole (assuming its finite) with the event horizon just being functionally inacessable and the black hole so large that internal conditions aren’t really influenced in any way.
Surely at some point it stops being useful to apply the same terminology to such vastly different concepts. If the universe is a black hole and Sagittarius A* is a black hole then “black hole” doesn’t communicate anything effectively outside of extremely niche astrophysics conversations.
The mass of the visible universe is apparently enough to make a black hole with an event horizon ten times larger than the visible universe’s. I don’t understand how that hasn’t happened already, but apparently it just doesn’t look like it’s happened (“unless…”).
deleted by creator
much larger universe than this? are you fucking kidding? we might just as well die then.
we might just as well die
Because it’s not what you expected?
I can assure you, whatever you expected is just as strange and absurd as this.Let me put this in another way:
To think that time might have not existed, then started up at some point, breaks my brain.
To think that time might go on for infinity in the past, with no starting point, also breaks my brain.Or you might just as well live given the absurdity of it all.
You both make excellent points!
Pulls deeply on the cigarette, stomps it out and then waves the pistol’s barrel towards a dark corner of the room.
“Now get into the box…”
Explains the warped timeline
The way things are going, more like we got tossed in an endless trash can. I don’t blame the Vulcans.
I’ve always believed that our entire universe is the inside of a gravastar in a 4D-universe. Our universe is the false vacuum inside it, permanently in superposition. We’re just one of the infinite potential states the wave function of the Bose-Einstein condensate inside could collapse into.
Oh, and gravity as a force would be the result of the 4D gravastar’s centrifugal force as it rotates on 2-axis, and that would be why we can’t figure it out.
At least that’s what I’ve always imagined reality. (Also known as my rambling brain doing its best in the moments between wakefulness and sleep)
Edit: tbh 5D makes even more sense
I’m mostly curious how higher dimensioal space could explain (perceived) expansion. Like: maybe we live in a 3d bubble embedded in an n-d space which keeps on collapsing, pouring more and more energy into our “universe”…
I recommend critically reading the paper. It is quite accessible to those with college-level science background.
Most importantly, it is still highly controversial whether this galaxy rotation direction bias actually exists. If you look at section 4 of the paper, the author is debating against different groups that did similar surveys and found no bias. Someone needs to actually work through this author’s methodology as well as those of other groups and figure out what is going on.
If there is indeed a bias, that is super exciting! An anisotropic universe due to being in a black hole would be a very cool explanation. But given the ongoing debate, a general-audience publication like Independent presenting this rotation bias as a given fact is very poor journalism.
Black hole cosmology suggests that the Milky Way and every other observable galaxy in our universe is contained within a black hole that formed in another, much larger, universe.
Forgive my dumb question. Why would we see the universe as expanding then?
Since
Black holes are incredibly dense objects where immense gravity crushes matter into an infinitesimally small point called a singularity
There’s debate on the existence of singularities and certain shapes of the universe can give the impression of accelerating expansion
Well, they still have a mass (and some form of “size”) iirc, that can expand as they absorb things
Using data from Nasa’s James Webb Space Telescope, researchers at Kansas State University in the US discovered that the majority of the galaxies were rotating in the same direction.
This goes against previous assumptions that our universe is isotropic, meaning there should be an equal number of galaxies rotating clockwise and anticlockwise.
“It is not clear what causes this to happen, but there are two primary possible explanations,” said Lior Shamir, associate professor of computer science at Kansas State University.
“One explanation is that the universe was born rotating. That explanation agrees with theories such as black hole cosmology, which postulates that the entire universe is the interior of a black hole.”
yeah it’s just the most headline grabbing possibility
@Bitswap@lemmy.world (moderator), can we have a rule about clickbait headlines.
I’m kind of getting sick of these pop-science articles that exagerrate everything times 1000x in the headline. In any other discipline that kind of hyperbole would be considered a lie.
Dude, after reading the paper from start to finish, this whole thing seems off.
- The guy’s an associate professor of computer science and has no degree in cosmology, but he’s talking about cosmological implications of these findings.
- Every single paper cited supporting his argument was written by himself (in exactly one case, it was written by himself and a coauthor). In total, Shamir cites himself
106130 times. - Numerous other papers by numerous other authors (some mentioned by this paper in attempted rebuttals) using a variety of methodologies find this not to be the case.
- It violates the cosmological principle used by major and highly successful models of the universe.
- The way he performed this analysis was an algorithm which he wrote. When he cites papers that have used this algorithm, he only cites himself, indicating no other academic in the world has thought this algorithm is seriously useful for this application.
- When speaking to The Independent (which is of really middling quality), instead of speaking about the data itself and how he arrived at it, he (again with no formal background in cosmology) starts talking about the most clickbaity possible implications of this data.
It’s totally possible Shamir is right and that there really is a massive bias. That would be extremely cool. However, he’s published numerous papers on this over the last decade yet still seems to be the only one who agrees with it. Which to me is highly unusual.
Thanks for doing the news org’s job for them. They either don’t know how or aren’t willing to do it.
Can I just say your thoroughness here is a real fucking impressive skill. Thank you for sharing.
Thanks for breaking that down, I wish newspapers or even BBC News did this. They do now have BBC Verify but its never super clear of their findings, certainly not in the format that you’ve just used. Perhaps theirs should be called BBC Balance. The only thing I would say with regard to your first point is that I’m not against the idea that any individual could make a breakthrough. At least with regard to theory.
We already know that throughout the history of cosmology, whole experts have been wrong when a new discovery is made. E.g. Highly likely that not everyone believed that Earth was centre of the Universe (like the earlier science communities claimed). The issue with this guy is he’s using his own biased ideas and data and some people believe whatever is printed in a newspaper must be right.
Only silver lining is at least there clickbaity headlines give the public something more substantial to think about for 60 seconds instead of what the next Kardashian is up to…
To be sure, I agree with your interpretation of your first point. I was establishing that as part of a pattern rather than an end-all “you can’t do science without a degree in that field”, especially since applied CS is monumentally important to every field. It’s that lack of formal education in cosmology combined with a pattern of only citing oneself for support of one’s arguments combined with this being a long-held and broadly successful assumption combined with numerous cosmologists using a variety of methodologies which they think are acceptable combined with no cosmologists choosing to use his algorithm combined with ostensibly using his time with The Independent talking almost exclusively about deep cosmological implications.*
* This last one could be The Independent’s fault; it’s technically possible Shamir talked their ear off about CS stuff and methodology and previous attempts and what he wants to do going forward but The Independent only ran with the juicy sfuff.
This guy reads.
I have always wondered about this and it’s always been the question I would want to ask neil degrasse tyson about if I ever met him… I never realized there was a term for it or even other people believed it…
My other crazy theory is that we are always in a state of jumping between realities… As a state of self preservation… We exist in the reality where we keep living. With the possibility of realities being infinite and the possibility of a subset of those infinites being basically the same as the one you’re in…
Who knows maybe it’s just a reassuring way to be happy knowing that one day your actually going to die instead of all those times you have felt like you have almost died being truly a time you have died…
As I understand it, the idea of Quantum Immortality is a bit more nuanced then that. It’s not that you would be “jumping between realities”. It’s more-so that, as the reality where you are alive is the only one you can possibly be aware of, any reality where you would die simply wouldn’t be seen by you. The splits where the potential to die exist would only be seen as “close calls” to the consciousness that is you. It’s more so a resolution of logic than a cross-dimensional mind swap. A pop-culture example of this is sort of seen in
Movie name
The Prestige.
Extra Major plot spoiler
Quick summary - in the movie, Hugh Jackman’s character gets access to a machine that instantly duplicates him, which he uses for his magic shows. To resolve the “small” issue of there being an ever multiplying amount of him, he has a mechanism to immediately drown the version of him on stage when they disappear as the other version reveals himself elsewhere in the theater. At one point, he talks about how he was always terrified that he would be the one being drowned. There’s a few interesting things about this particular line, the most pertinent one being that he is never the version that gets drowned, evident from the fact he is talking about it. Obviously this is just fiction, but I think it’s a good illustration of the concept. There are also a lot of details left nebulous, possible details of which could suggest Destructive Teleportation instead.
Those bastards are always one step ahead of me… At least I learned what they call it…
Our consciousness continuously transferring between realities to stay alive is kinda crazy ngl
What’s the big question you’ve always wondered about though? It’s not clear from your comment
If the whole observable galaxy is inside a black hole…
Black holes get bigger and expand as does our observable universe… I always wondered if the two were connected…
But from reading everything in this post it seems like the theory doesn’t hold up… But also who knows…
I like my other theory better anyways.
If we are going based off of evidence to support it, I wouldn’t go crazy for your other theory either
My theory is that the Big Bang is local and there have been other big bangs outside our observable universe and our entire existence is inside a multi trillion year expanding and contracting space foam
Big Crunch and white holes and all that
https://en.m.wikipedia.org/wiki/Kalpa_(time)
The concept of recreation is pretty old
