That's awesome, I just followed the account 😀

So you can use the RSS trick to create all sorts of cross posting from sites like reddit, right ?

I'm pinging @mike and @kev, can you take a look at this issue - fosstodon.org/@futureisfoss/10…

I don't know if its an instance specific issue, but if its the same for all mastodon servers then I don't know if they can do anything about it.

Not sure. There's nothing that we do specifically here on Fosstodon in federating with Friendica. When I look at the feed, I'm just seeing a list of links, not the content of the posts. I'd wager it's something to do with how Friendica is federating, but that would just be a guess. When I look at the account from a test account I have on another instance, it's telling me "old" posts aren't available. The @tio shows text in the posts, but links at the bottom of those as well

@kev

Yeah, time is just a way for us to measure change. I remember Jacque talking about this in the TROM documentary, sun didn't rise because its 6:00am, its actually the other way around. We get stuck in this mentality of seeing measurement as the thing you're measuring.

I think your way of looking at it might me more accurate. Its not time slowing down, its just rate of change of atoms or something that changes, that's usually what we mean when we say time slows down.

"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.

This video explains it very well - youtube.com/watch?v=QqsLTNkzva…

Its really interesting cause there's a lot we don't know about black holes, maybe the truth is even more weirder than our theories, haha.

"Problem of other minds" is a perfect example of this, since there's no way to prove/disprove it. This is similar to the question "Is your red the same as my red?", Vsauce did a video about this problem - youtube.com/watch?v=evQsOFQju0…

You're right, these might be a bit "bla bla bla", its still quite interesting to think about. They really show us our limitations, we can't know the answer to everything.

Yeah, maybe trying to categorize discussions is not that great. There are times where these could be useful, like the example of physics & chemistry, but it doesn't mean anything other than a rough idea of what we're talking about.

I don't know if there's any reason to be against the field of philosophy, that Vsause video I sent you earlier is pretty philosophical, but I can't say I never learned anything from it :)
@tychosoft

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

> Could also be that there is no such thing as singularity...

Could be, but the mass of the black hole still has to exist somewhere inside the event horizon. The idea of a singularity is probably used to explain the extreme gravitational pull, maybe it'll have less space-time curvature if the mass is spread around VS on a densely packed point. So more space-time curvature means more gravity. I'm still not sure how scientifically proven this singularity thing is, this is my understanding.

That video is talking about the same thing I said earlier. So its confirmed, dense objects have higher gravity 🙂

> this mass of a black hole is not that black disk we observe, but a tiny point in the middle.

Of course, the event horizon is not a physical boundary like the boundary of a ball, its a point after which light can no longer escape from the gravity of the black hole. And gravitational field is always much larger than the size of the object, think about sun pulling on earth.

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 😂

You replied to the wrong message again, haha. It didn't even tag me.

I wonder if its a bug in friendica or you just accidentally clicking the wrong reply button, this seems to happen from time to time. I don't know how it is in friendica, but if its a bug they gotta fix it soon.

> At least thats what they theorize ;)

I don't know if its just a theory, what's happening inside a black hole we can't know, but we can observe the surroundings to prove that there's extreme gravity there that even light can't escape. Remember, light only moves in a straight line, but massive objects can bend the space-time curvature to bend its path. This has been proven, I recommend you look more into general theory of relativity, its very interesting :)

> 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.

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.

youtube.com/watch?v=0sr1Xeocuu…

I've been thinking about this video you sent me....... And I think I get it now, I understand why they theorized singularity to be a point. This is even more stranger & weirder than I thought, haha.

Just think about that for a moment, this is one of the craziest shit I've ever heard, and its hard to believe these things actually exist ! 😲

Its really hard for me to grasp this concept, because its so different from everything I've experienced in my life. My intuition tells me that if more stuff gets sucked into the black hole, the singularity should get bigger. But it doesn't !

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"

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 😂