fact... potentially...
Yes, we're going to ignore a sensationalist conclusion that is not supported by evidence.
The actual model is just that, a model. It says that our universe can be described the same way as we describe the information systems around an event horizon, and in many cases in physics, if a system can be described using the same model it is often related, connected or the same in some way.
It's not sensationalist, but it's highly misinterpreted and turned into sensationalism.
It doesn't really give us anything meaningful that we can use or understand the universe better just yet, but maybe someday someone will figure out something that helps us better understand where the universe came from. That's all. It's a very convincing theory if you learn about entropy and Planck-scales and event horizons around black holes, but it's not even sensational on its own.
So like I've been vaguely paying attention to them finding larger, farther, and more red-shifted galaxies. I've been suspecting the universe is a black hole for a while now.
What if: information CAN survive the event horizon... but only if it hits the accretion disk from the side at the perfect angle to spiral in. That's why JWST is finding galaxies that are larger, older, and much more common than we'd anticipated -they're extra-universal objects.
What if dark energy is a function of hawking radiation... and the expansion of our universe is driven by primordial black holes? Maybe hawking radiation is the black hole equalizing the same anti-matter/matter asymmetry we've observed in our universe.
I'm sure someone formally educated on the subject can debunk those ideas tho.
I'm fairly educated but not formally on the subject.
The idea is this: conservation of information does not break anywhere we've ever observed, and much of physics is based around the immutable "conservations."
This means, whatever happens, whatever billiard ball configuration of particles things are in, you can calculate where they came from and how they got to that position. It's very basic to causality and we've never seen exceptions to it, aggressively so, the universe tends to do funny things just to preserve this kind of law. Except in black holes. All of our understanding about them says that even if they evaporate over vast time scales, there's still no way to "reassemble" the information that comes out, it's a cosmic information laundering service, which breaks a very fundamental conservation.
So, the idea is... what if information is preserved around the "edge" where we see particles slowly fall in and seem to take a literal eternity to fall in? What if that somehow retains all the knowledge of everything that fell in? When you calculate this idea up, you get a sea of information happening at the smallest possible scale, where information gets packed into it's densest possible state. And it also lines up almost exactly with what we imagine the universe to look like when describing it entirely as an information system. What's really happening in this situation is the universe is basically a flat "sheet" of information "bits" that curls around you, you the observer is sitting right into the center of this parabolic "lens" that assembles this information into a 3D picture of the universe. (See: holographic universe principle.) This idea that our observation of the universe is the center of a projection somewhat explains a lot of things like subjective experiences, a lot of quantum weirdness and what's happening at the quantum foam scale.
To understand this better you have to discard your understanding of locality and that your perceptions and experiences of time and space are largely illusions made by your brain to explain the input you're getting. There is no real such thing as "That thing is far away" it's more like "there's an informational rule how much time/space is between this event and that event."
I recommend PBS Spacetime, they did a lot of videos about the idea but they can be a bit heavy if you haven't caught up a little on entropy and time/space diagrams and black holes.
Pshhh I figured this out when I was 17 the first time I took psychedelics.
Love PBS Space time!
So like in your opinion, tldr, do you think it's explicitly impossible for light to survive entering a black hole such that it could reproduce an image of whatever it reflected off?
Light that falls over the edge of the event horizon cannot get out again. The distortion from the mass of the black hole is simply too steep and we've taken pictures of the dark shadow that this creates in space.
Once over the event horizon, the light still "exists" in some manner, but has been effectively cut off or removed from ever interacting with our universe again, so it also doesn't really exist anymore.
The real problem happens further down towards the singularity where space pinches off. That part of the gravity well is so steep and trails off to forever, that light/particles cannot actually enter it, the same way that it's hard to send a probe to orbit the sun or mercury because it takes so much slowing down. As a circular orbit shrinks, the momentum of the orbiting object is conserved so the object speeds up, as it speeds up, it gains enough velocity to push back out. So particles approaching infinite velocity do... what? We don't know, but this is just one of many places where our physics and understanding breaks down because it approaches infinities.
From which point of view?
If the observer is inside the event horizon of the black hole, they'll see the light as normal. There's nothing special about the event horizon for the observer or the ray of light.
If the observer is outside of the black hole, they won't ever see the light.
Bro what if... *hits blunt* What if the whole universe was like.. like a quantum multiverse and shit- like, if we were supersymmetrically entangled without own spacetime strings
Hear me out:
Here's a far out idea based on absolutely nothing:
What if all of the information imprinted on the event horizon of a black hole is duplicated and becomes the stuff that creates a new universe inside of a black hole.
Like. Everything that ever hits the event horizon are the pieces from which a new universe is built
My intellect level is dipshit: do you know a good source for me to study and learn about this?
It’s not sensationalist, but it’s highly misinterpreted and turned into sensationalism.
Seems like every cool physics theory turns out this way. Physics: it exists for the masses to misinterpret
I mean technically the sentence structure says that:
So in a sense there is no contradiction there with the words "fact" and "potentially". Although there is a relevant possibility for confusion of what is being stated as a fact, so your point stands. I just like nitpicking on technicalities :D
I'm pretty sure that kind of knowledge falls under the "huh. Neat." category anyway. It's the kind of knowledge that, while a cool thing to learn, will have absolutely no bearing on my current life, and is not going to be likely to have any practical applications for many years to come.
It's for the folks plagued by existential dread that need to know where we came from. Well son, it's black holes the whole way down.
As smug and pretentious Neil deGrasse Tyson is, he said it best, something along the lines of: What does this mean to us in the grand scheme of things? Nothing.
As I often do, I disagree with Tyson, the model may help us understand the origin or nature of the universe someday. It's just a model, but when a model can be tested or studied in some way, we generally tend to learn new, grand things about everything.
It's not sensational, because it doesn't say anything radical, other than show a very similar relationship between information systems in event horizons and the way our whole universe can be modeled as an information system.
In the grand scheme of things:
So yeah, in that grand scheme of things, making models of the larger universe is not actually that important. First we need to make use of the discoveries made way over a century ago.
If the knowledge of our problems prevents you from appreciating and finding any wonder in life and the larger universe, you have been defeated long before any of the actual threats have gotten to you.
I hope you find something that gives you joy or inspiration or a sense of grandeur in at least something. If it wasn't for science we wouldn't know about 2 out of three of those things, so maybe think how well your message is going to go over with people who are already aware of all that and just trying to find something greater in life than the perpetual, life altering struggles we've been dealing with and surviving for the last 200,000 years.
Are you saying that he said that about this in particular or that it's a quote he says about loads of things? xD
On a side note: I don't think we should hate on DeGrasse Tyson, because hating on him seems to be a meme that's just gone too far. Isn't it rooted in a literal 4-chan greentext? But I think he's polite, nice, and the things people interpret as disingenuity are just his presenting quirks. Like the "tweeting the same mirror joke every month" actually has a more neat explanation.
All I know is that with a mirror, you can kiss yourself but only on the lips
It's been a while so I'm a little hazy on the details, but in one of the Culture books by Iain M. Banks there's a part where a bunch of Minds (for those unfamiliar: kind of beyond godlike artificial intelligences that run a utopian civilization, the eponymous Culture) are talking about how they can create simulations within simulations so perfect that it would be impossible to tell if you were in one, and what if their entire reality was just one in a long chain of nested, perfect simulations? But in the end they come to the conclusion that there's no way to tell and nothing they can do about it anyway, so they might as well just get on with it lol.
Just tell your landlord we're in a black hole and the rent doesn't matter.
Isn't matter the whole issue
You need to explain to them that rent isn't matter, so it doesn't matter.
You are matter but you don't
And then punch your landlord in the face. They are a landlord, they probably deserve it.
So this means there are potentially millions of other universes whose portals are within our own?
Good, this one universe did seem a bit too small to hold my ego.
If you mean entering a black hole, well, parts of you will probably make it in. After the spaghettification.
Can't go to work if I'm 1 atom thick.
You'll have to log in remotely via teams
I'm sure the audio won't work in space, just like on Earth.
An atom will not be able to mute in a 10+ people meeting. You'll fit right in!
You know they'll still make you try though lol
Yeah, it’s hard to get too worried about specifically how the universe will collapse in 50 million years when I’m not sure our society will exist in 50 years and I’m not sure I will have a job in 5 months.
Anyone trying to frame this idea as worrying is trying to grift using science.
The idea in itself will never impact you personally. Most likely.
See, it's just a model for understanding how information systems work, and you can model the entire universe as an information system which could be identical to what happens around event horizons. It could be a big deal for people trying to understand how all this formed and where we came from, if you're curious about that kind of thing and have learned a bit about entropy and time and space and event horizons it's a pretty remarkable idea.
But the most realistic thing that will come from it is just more questions, even if it's true.
Best case: we learn that there are connections in time/space that we never were aware of or can use this model to predict particular kinds of spacetime effects and could figure out things like why space is expanding. Wildly best case: we figure out something about gravity we never considered and you get your goddamn hoverboards. Better late than never.
Shiiiit lexx was right
Wow crazy I'll make sure to adjust my schedule
abolish all rent. see the cat. seriously!
what
Your life just got worse. You're paying rent inside of a black hole.
Makes sense. Everything in this universe sucks. Ha. I'm funny. Anyways...
Cool.
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