My theory about black holes :)

Shut’up. I know, ‘am no physicist. And no scientist for that matter. That’s fine. I just had an idea and is likely to be wrong but it makes my brain giggle with curiosity.

Read the post. I just solved the black holes and dark matter mystery. hahaha #tromlive

www.tiotrom.com/2021/11/my-the…
My theory about black holes :)

@tio
AFAIK, the mass of a black hole is concentrated on a point called the singularity, this is the reason for its extreme gravitational pull. So for black holes to behave the way it does, it needs a singularity. Are you suggesting that this singularity is made of dark matter ?

How does this dark matter singularity become that foggy patches shown in the NASA Hubble map ? To me, this doesn't seem to solve dark matter but just complicates things even more, lol 😂

@futureisfoss Ah you mean "At the center of a black hole, as described by general relativity, may lie a gravitational singularity, a region where the spacetime curvature becomes infinite.". that's just a "may". :) So may-be they are wrong, or maybe the describe it weirdly. Or maybe it is but us still made out of dark matter :). Why is my theory making things more confusing if at the center of a black ball is such an immense gravitational pull that they call it a "singularity" point? :)

@tio
AFAIK, general theory of relatively is proven. I don't know if singularity makes space-time curvature infinitive, that's kinda confusing because infinity a theoretical. For example, we consider sun's rays as parallel even though its not at an infinite distance from earth, so the context matters.

@tio
Because I don't know the mathematics behind all this, I'm not sure which infinity they meant. Its possible that they meant the true theoretical infinity. I've heard the quote "black holes are where god divided by zero", so there's definitely some weird mathematics going on. I think Hawking radiation disproved that statement, IDK 🤔. Its been a while since I last heard about black holes, haha. Anyway, these things are weird AF, they're too dense for us to grasp ;)

@tio
> Why is my theory making things more confusing

Singularity is more like a point, so calling it a "ball" is kinda misleading. Also, there's a lot of unknowns about dark matter, you're just making a lot of assumptions here, that stars convert matter to dark matter when they explode, that black holes convert matter to dark matter when it swallows something, etc. There's no need to make it this complicated when you can explain everything using a singularity made of normal matter, not dark.

@futureisfoss To me makes more sense than a "hole" in the universe :D. wtf is a hole haha. Things "get in" but where do they go? These "holes" radiate and have a mass....they have other objects orbiting around them....they can collide with other "holes" and create bigger holes. Seems more weird to me than these are just another type of star, a black star with a gravitational pull so huge that even light can't escape.

@tio
Its not actually a hole, you know that right. It just pulls everything in to the singularity, that's just an extremely powerful gravity. And for where does this matter go, there are theories saying its like wormhole, so it spews everything it swallows somewhere else. There's also Hawking radiation, which is more widely accepted I think. It solves this information paradox, because it shows that black holes radiate away.

@futureisfoss Well they call it a hole...I know is not like a normal hole. But as far as I understand it doesn't spew what it swallows somewhere else since you can see it growing and account for the stuff it swallows. The Hawking radiation is simply a proof that they also lose "stuff". Stuff gets out. And probably that's normal matter since we can "see" it.

"It just pulls everything in to the singularity" - so you're saying it pulls stuff into that "point"? Then why are these black holes bigger, smaller, have a shape, a mass? I don't get it :D

@tio
"It just pulls everything in to the singularity" - so you're saying it pulls stuff into that "point"? Then why are these black holes bigger, smaller, have a shape, a mass?

I'm no expert, but from what I understand, what they mean by the size is the event horizon. The event horizon is a boundary inside which light can no longer escape. So intuitively, this event horizon should expand when the mass increases because gravity increases with mass.

@tio
BTW, from what I know about black holes, they don't have a shape. I've heard about spinning black holes, but never a cube/pyramid shaped one 😁

@futureisfoss Well we can't observer them, remember!? But we can observe the outer side of them when they have lunch, and we for sure see a disk-like shape. Which can, in fact be spherical.

@tio
Oh yeah, the singularity might be of any shape, we don't really know much about the inside, everything after the event horizon is just black

Most black holes I've seen in pictures and stuff have a spherical event horizon, and I think the disk you're mentioning is things orbiting these black holes that glow because of their heat, that video explained it. If the event horizon is spherical, the stuff inside should be spherical too right ? I don't know enough about gravitational fields to know

@tio
That disk shape could also be something called "gravitational lensing" which happens around the event horizon. Its kinda weird TBH, crazy things start to happen when the gravitational pull is so high !

@futureisfoss Thanks for engaging I learned more things because of that. I wsn't aware that they are saying that a black hole is a black nothing but its mass is in a very dense center thats super small. I had the wrong impression that the black hole is the entire black thing. Maybe that's what made me think about it being a black ball. These two videos explain it well:

ytb.trom.tf/watch?v=poE8CuucCE…
ytb.trom.tf/embed/0sr1Xeocuuc

Although I will have to update my theory ( :)) ) it still may be wrong the way they are theorizing about it now. Maybe there's still a black ball instead of a black hole, and it is made of a different type of matter, maybe even dark matter.

You did great at explaining this, and I am very happy you have engaged in such a discussion :).

@tio
Those 2 videos are very good 👍

My confusion regarding this black balls theory is this:

1. Not even light can escape a black hole because its so dense that the gravity is in the extremes. But if it was a ball the same size (of event horizon), then it wouldn't be this dense and wouldn't have that much gravity

2. We don't even know if matter can become dark matter, let alone say that stars exploding will cause it. Its called dark matter cause we literally know nothing about it, lol 😂

@futureisfoss

Not even light can escape a black hole because its so dense that the gravity is in the extremes. But if it was a ball the same size (of event horizon), then it wouldn't be this dense and wouldn't have that much gravity

Actually the one who first came up with this theory, a mathematician some 200 years ago, called it a dark/black star and proved mathematically you can have such a star where light can't escape it because it is so dense. And black holes are actually stars....same way a neutron star is still a star. They call it "hole" and make things confusing a lot :D.

We don't even know if matter can become dark matter, let alone say that stars exploding will cause it. Its called dark matter cause we literally know nothing about it, lol

Exactly. We don't even know if it is matter. But has similar properties with a black hole that's why they are thinking black matter can in fact be black holes. They both do not interact with light/matter so that we can't see them, and have a strong gravitational pull.

@tio

> Actually the one who first came up with this theory, a mathematician some 200 years ago, called it a dark/black star and proved mathematically you can have such a star

I didn't knew about that, interesting... 🤔
Also, keep in mind that this mathematician can be wrong, there has to be a reason we don't call it a star anymore. Einstein published general relativity in 1915, before that we didn't had a clear picture of how gravity worked.

@tio
Its possible for a star's gravity to bend light, this is actually how we proved general relativity. But a star's gravity is not strong enough that even light can't escape, if it were then it wouldn't be able to glow ;)

Also, when you call it a black ball, a dark planet comes to my mind. And I don't get how a planet can do what a black hole does. Even if your black ball was made of dark matter, the gravitational properties would be kinda the same as a normal ball.

@futureisfoss A "black hole" is a star. It is a collapsed star, same as a neutron star. So we can better call it a "dark star" or something like that. Now the properties of this dark star can be that its size are immensely small and dense, like the singularity of a black hole. Semantics. A dark star, or black ball like I call it, can be so dense that light can't even escape it. Why can't it be? Or can be that is made out of dark matter and combined with gravity it sucks in normal matter and converts it into dark matter.

A star doesn't have to glow. White dwarfs barely glow.

Take normal matter. A neutron star then the Venus planet. Both made out of normal matter. But the neutron star's gravitational pull is immense compared to the one of the planet Venus. Despite them being made out of the same matter. Why can't it be that dark matter that we observe scattered around the universe clump under tremendous pressures into a ball just like a neutron star, and have immense gravitational pull? :P

@tio
As long as we're talking about the singularity, the name we give to it doesn't matter. In my mind, I see stars as something that radiates energy, so its hard to call black holes a star. I know about hawking radiation, but its very different thing. In hawking radiation, none of the energy/matter that's released comes from the black hole itself.

From wikipedia: "A star is an astronomical object consisting of a luminous spheroid of plasma held together by its own gravity"

@tio
Its also hard for me to call singularity a "ball" because now I have a better understanding of why they theorized it to be point sized. Even if it wasn't point sized, I still find it hard to call something so tiny a "ball". Would you call atoms a "ball" ? IDK, sounds weird to me.

@tio
About dark matter, there is still the question of where that normal matter went ? If you're saying that normal matter turned into dark matter, then it would work AFAIK. But my question is "why ?". You're just adding an extra step to the whole process, there's no need for matter to become darkmatter for black holes to exist, so why make it more complicated ? 🤷

If scientists are looking into such theories, then they're probably doing it for entirely different reasons than us 😂

@futureisfoss

You're just adding an extra step to the whole process, there's no need for matter to become darkmatter for black holes to exist, so why make it more complicated ?

As explained in the article....it can solve 2 issues: 1. We understand what black balls are. And 2. It may explain how dark matter comes into existence.

Why would you invent the singularity (infinite point), or the "event horizon"? These are completely new things. To say that the blackness of a black hole is just stuff that we can't see because light can't escape the gravitational pull, is also an invention, isn't it?

@tio

> 2. It may explain how dark matter comes into existence.

I don't understand this point, that's why I asked this question:

> How does this dark matter singularity become that foggy patches shown in the NASA Hubble map ?

The gravity of a black hole is so strong that nothing can escape it, so how can dark matter escape it considering their gravitational properties are similar to normal matter ?

@futureisfoss And I explained: a normal star produces the chemical elements (atoms) we know of today. That means atoms made out of protons, neutrons and electrons. We understand that.

Now the same matter can form a cloud of gas that has a very weak gravitational pull, or under tremendous pressures a more dense object like a planet or a star, or a neutron star.

So, same matter, different "objects": from clouds of gas, to planets, asteroids, or stars of wildly different sizes and densities.

Why can't this be true for dark matter? What if dark matter is made out of different particles (atoms) and in most cases you see it as a sort of "gas" that still has a decent gravitational pull from my understanding, but at times under tremendous pressures it coalesces in the form of a star.

ofc this is pure speculation but an interesting thought experiment.
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@tio
> in most cases you see it as a sort of "gas" that still has a decent gravitational pull from my understanding, but at times under tremendous pressures it coalesces in the form of a star.

Ofc, this is a possibility, I understand that. But my point here is that it can't go from a planet to a gas, only the other way around. So if you're saying all dark matter are created when black holes are born, be it a black ball/star, it'll never become that foggy patches shown in the NASA Hubble map.

@futureisfoss When a star becomes a neutron star it loses mass/energy in the process of collapsing, and those remains will transform into gas clouds of the normal matter that this star was made of. That's what my "brian" :) told me one night, maybe when a star becomes a dark star, it transforms matter into dark matter and it also shoots out this sort of dark matter when it collapses, like all stars do.

Also I find it bizarre that this super strange "point" (singularity) has a magnetic field like all stars have. As far as I understand it. It makes more sense for it to have a magnetic filed if it is a dark ball in my mind at least.

@tio

> When a star becomes a neutron star it loses mass/energy in the process of collapsing, and those remains will transform into gas clouds of the normal matter that this star was made of.

Ok, this is actually what I wanted to hear, now your theory is making more sense to me, and I understand it better now 😀

I just couldn't think of any way its mass could spread out, haha 😂
So the answer is a supernova explosion that spreads out the mass of these black balls that are made of dark matter.

@futureisfoss Yah well when a star becomes a black hole I suppose it loses mass in the process of collapsing, squashing all of those atoms in the process.
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