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Research suggests Big Bang may have taken place inside a black hole

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Re: Research suggests Big Bang may have taken place inside a black hole

#431

Post by adwn »

refulgentis wrote: post #341
NL807 wrote: post #335

Earlier quoted context omitted.

Sabine Hossenfelder has a few comments on this topic in her YT channel.

Sabine Hossenfelder cast herself out from academia and took a recent turn to monetizing laundering peoples vague understanding string theory is a waste of time (cannot be proven empirically) into academia is doing fake work and if they'd apologize and own up to it, maybe we would trust them again. Most famously, through a bizarrely written letter from an anonymous whistleblower pleading that she not topple the academ…

I can't parse either of your sentences. Maybe you could introduce some intermediate variables, or use parentheses to give them structure?

Re: Research suggests Big Bang may have taken place inside a black hole

#432

Post by paulnovacovici »

meindnoch wrote: post #101

I've read somewhere an article which posited that our 3D universe might be inside a 4D black hole. When you cross a black hole's event horizon, the radial coordinate becomes timelike, so you lose one degree of spatial freedom. Movement is still possible in the tangential directions however, so what you get is basically an N-1 dimensional universe. So maybe our 3D universe is actually matter that fell into a 4D black…

I’ve always like to explore the idea of our universe being in a static 5th dimension where the 5th dimension represents randomness/entropy. The same way to think about exploring a 2d plane in a 3 dimensional space where the 3rd dimension is constant. We just happen to be in a random big bang in this 5th dimensional space

Re: Research suggests Big Bang may have taken place inside a black hole

#433

Post by bdbenton »

pkaodev wrote: post #140
n2d4 wrote: post #71

Earlier quoted context omitted.

Yea, and it was a great read too. I wish more researchers would publish blog posts alongside their technical whitepapers, although I acknowledge that not everyone involved in science has or wishes to acquire the skills needed to write blog-form content. (I'd also be worried about a world where researchers are evaluated based on the virality of their blog posts, vs. how impactful their work was.)

[flagged]

It's a controversial observation, but it is very true. I work with AI models and have to read recently published research to work with the latest developments in the field.

Do a quick keyword search on papers related to the subject. So much of it is completely useless. It is clearly written to keep people busy, earn credentials, boost credibility. Papers on the most superfluous and tangential subjects just to have a paper to publish.

Very little of it is actually working with the meat of the matter: The core logic and mathematics. It is trend following and busywork. Your sentiment is controversial because people are religiously loyal to the intellectual authorities of these credentialed systems, but a lot of published research does not push any boundaries or discover anything new. This paper seems to be an exception.

I would argue that a lot of the research published in the social sciences also falls under this category. It is there so that someone has a job. I'm not discrediting social sciences in general, am just pointing out that there is a lot of ways to creatively take advantage of academia to secure a paycheck and this is certainly exploited. The kneejerk reaction to reasonable criticism just proves this point even further.

Re: Research suggests Big Bang may have taken place inside a black hole

#434

Post by 47282847 »

hshshshshsh wrote: post #224
nathan_compton wrote: post #220

Earlier quoted context omitted.

I don't see how this is. It seems eminently reasonable that observation can simply be performed by sub-omnipotent beings.

Life is one omnipotent being. It's just ego, thoughts and social identity that creates the illusion of multiple beings. But ego and names are made up. Separation just thoughts. The more life believes in thoughts it becomes divided. But the waves and ocean are one.

An illusion is something that disappears when you see behind it, no? How goes it for the illusion of the both of us being connected but separate beings? I think at the very least it would require consent of both parties to merge, so as long as I don’t believe it, you have to live as a being separate from me, and as such it stays „an illusion“ for you that we are one; merely an idea, a potential option maybe, no?

You can declare Life to mean the complex interplay of every living organism, but I don’t see how you can go as far as to claim our physical and mental separateness is not there at all? After all, we need boundaries between „us“ to not be utterly alone. I like to think even of „my“ body more as a federated system, like Life maybe but on a smaller scale. I have some influence on it but not full control. In fact, one could say the polarities in the physical realm are Nature (towards separation, entropy; Kaos) and Life (actively working towards one, requires energy to keep matter ordered; Order).

Re: Research suggests Big Bang may have taken place inside a black hole

#435

Post by account-5 »

__turbobrew__ wrote: post #422
account-5 wrote: post #208

Earlier quoted context omitted.

There was a thread a while ago on here where the hypothesis for why things are moving apart at faster rates is down to time moving at different speeds due to mass. So time in the void between galaxies is moving quicker than time in the galaxies, but on the grand scale of the universe the differences as up a lot. I quite liked this theory, think is make sense, at least from my very limited understanding of this stuff.

Would make sense if our universe is a simulation. It takes more compute power to simulate areas of high density so time naturally flows slower there.

Yeah, but also that's how time actually works too, time runs slower for us on earth than say GPS satellites so adjustments need calculated to sync the two. Again caveat is I'm more than likely either just wrong or misunderstanding it or massively oversimplifying it.

Re: Research suggests Big Bang may have taken place inside a black hole

#436

Post by burnt-resistor »

kannanvijayan wrote: post #94

Oh I have so many questions on this topic. I've often wondered about this. I don't have any direct physics training, but it's something that felt really plausible after I learned that the mass of a black hole is linearly proportional to its swarzschild radius. As the size of the black hole goes up, its overall density must decrease. Combined with the other observation that our universe has uniform density at large sc…

A black hole is really just a singularity with infinite density by definition, but finite mass.

The size and density of the Schwarzschild volume is determined only by mass (stationary, non-rotating). It's proportional to the inverse square of mass. Density = 3c⁶/32πG³M².

SMBHs have densities ~0.5 kg/m³ between thin air and water.

Stellar BHs are ~1e19 kg/m³ several orders of magnitude more than a neutron star.

Re: Research suggests Big Bang may have taken place inside a black hole

#437

Post by PUSH_AX »

afarah1 wrote: post #196

Interesting read, but even if we assume the author is correct, and the cosmos formed as a black hole in a larger universe, the question remains, how did this larger universe formed, then? Might just be impossible to know.

Just casually adding the biggest question its possible to ask

Re: Research suggests Big Bang may have taken place inside a black hole

#438

Post by dguest »

daedrdev wrote: post #294
johnisgood wrote: post #236

Earlier quoted context omitted.

Most jobs are really not important either, they just keep people busy. Do you need sources for this claim, too?

The Bullshit Jobs jobs theory has been widely discredited by researchers, but you probably won't believe them. Consider that most business is B2B so it makes sense that the casual observer would not know what it's for. Additionally, the Bullshit Jobs book relies on a magazine survey, actual studies shows that the percent of people who consider their jobs meaningless is very low and also decreasing over time

I think you're right, but it's not how I remember it for some reason.

I didn't read the book "Bullshit Jobs" [1] as an attempt to quantify how many jobs were bullshit. The author was an anthropologist with no interest in quantifying the economic impact. It's lots of amusing anecdotes from frustrated workers and a nudge for people to question the efficiency of capitalism.

At least that's how I read it. But reading the wikipedia page it sounds like a lot of people fixated on the idea that society could double its efficiency. Hard to know if there's a correct interpretation of the book's claims, and unfortunately we can't ask: the author David Graeber died in 2020.

[1]: https://en.wikipedia.org/wiki/Bullshit_Jobs

Re: Research suggests Big Bang may have taken place inside a black hole

#440

Post by empiricus »

jarend wrote: post #350

The article is based on a physics paper (arXiv:2505.23877), not management theory or institutional metaphors. What the paper actually proposes is that the Big Bang may have been a gravitational bounce inside a black hole formed in a higher-dimensional parent universe. Quantum degeneracy pressure stops the collapse before a singularity forms. From the outside, it looks like a black hole. From the inside, it evolves as…

Looking at the paper, I don't see any higher dimensions of the parent universe, it is still using the same 4D General relativity framework for the parent.
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