How do we quantify black hole feats?

When it comes to trying to find the greatest high ends of a character, it's usually directed towards them surviving a black hole. However, alot of black holes in fiction don't really follow the exact same rules we think real life black holes operate. Not only that, but there is still so much mystery surrounding real life black holes that science still struggles to comprehend.

It is still possible to quantify what happens outside the surface/event horizon of a black hole. Accretion disks are formed when matter from other celestial objects (usually stars) get torn apart and "consumed" by the black hole. However, all matter doesn't get consumed instantly. All this matter circles around the hole and reaches speeds close to or equal to that of light, which is why it can get mega hot and outshine all stars in a galaxy. Which is also why chunks of this matter can spew out and create super fast and powerful beams which are known as gamma ray bursts.

It should be noted however that not all black holes have accession disks. And if we wanna talk about what happens inside the surface/event horizon of a black hole, that's where things start to become unquantifiable. The laws of physics as we know it start to break down the further into it you go, and as far as I know there's really no define answer for what truly happens when you get fully sucked into it. By that point, it's all just theories.

So, durability feats for characters that can survive the outer surface of a black hole I think have more or less just matter manipulation resistance, unless they're also inside of an accession disk which means they're also taking all of the heat and energy being smashed against one another. Feats inside the actual black hole however are complicated. We do know that no matter, not even light can escape inside of it. So that would logically mean you would have to be atleast FTL in order to escape it. But we can't tell what durability tier it would make someone. Black holes don't work like planets or stars, they're massive gravitational objects that collect and recycle anything unlucky enough to get close to it.

What do you think?

Well when it comes to black holes, one interesting thing is that larger black hole is, less force you will feel outside horizon. Tidal forces for a very large supermassive black hole are modest at the horizon, meaning that even regular person could survive going into black hole, if it is absolutely massive. If it is smaller, on other hand, you will be ripped apart long before you cross horizon itself. So when it comes to character surviving going into black hole, important thing is is it more of " normal" black hole, or really super massive one. As for how things work once you are inside black hole, I will quote one explanation a physicist provided:

"A good approximate formula to calculate the time t from horizon to singularity in a black hole of mass M is t=πGM/c3≃(M/M⊙)×1.54×10−5 s=𝜋𝐺𝑀/𝑐3≃(𝑀/𝑀⊙)×1.54×10−5 s, where M⊙ is the Sun’s mass. Even for a billion-solar-mass supermassive black hole, this gives only about 4.3 hours. Long before you reach the singularity, tidal forces do become strong enough to rip you apart"

So yeah, escaping black hole takes FTL speed, as for strength of force you will feel both inside and out, depending on size of black hole and how close you are to singularity, someone who has working knowledge of General Reativity( which I of coure do not have) can maybe calculate that, but I myself have no idea how to do that. But yea it is in general hard to tell what durability tier that would make you.

Depends on the verse.

Some verses treat black holes with cartoon physics that defy all math calcs, so they are impossible quantify.

Some verses use cartoon physics for black holes but explicitly state their own math, which should be used as canon for calcs.

Some verses explicitly stipulate real world math for black holes, in which case the Schwarzchild Radius formula for black hole mass and/or infinite mass-energy equivalent light speed escape velocity are applicable. However, as real world science evolves, so must the maths we use on battle forums.

Context also matters. If it’s a technological or magical black hole, the power could be much less or much more than a natural black hole. In those cases, other info the verse presents about the black hole are relevant.

For example, the MCU shows real world math onscreen repeatedly about black holes, light speed, and mass-energy equivalence. It also shows lots of different types of black holes.

Thor 1 shows a natural black hole at the center of a galaxy inside Yggdrasil. Arishem creates a magical black hole with his body near Earth. Thanos creates a magical black hole with the Space Stone on Titan. The Bifrost contains a magical black hole whenever it opens. The Dark Elves had lots of technological black hole grenades.

Each instance had very different power levels.

Bump.

Complicated

@eredin12: So say you go into Saggitarius A or Pheonix cluster you could go inside without being torn to atoms(at least immediately)

@supreme101: This guy is actual physicist with number of published works and universities pages recognizing him:

https://physicsclub.quora.com/Could-a-human-enter-a-black-hole-to-study-it

And he says:

A black hole with a mass no more than a few times the mass of the Sun is very compact, at most a few dozen kilometers wide. When you get that close to a source of strong gravity, tidal effects become gigantic. These will rip any spacecraft, any human to shreds (this is what’s called whimsically “spaghettification”) long before they even get close to the event horizon.

The only black holes that have gravitational fields that are gentle enough near the event horizon are the largest supermassive black holes (not puny ones like “our” supermassive black hole in the central region of the Milky Way but much larger ones in other galaxies.) The nearest such very large supermassive black hole is tens of millions of light years from here. To get there with the technology we have… well, we can’t. We have no technology yet that would allow us to escape the gravitational pull of our own galaxy, even if I ignore the enormous (billions of years) travel times involved as a mere “practicality”.

So seems like those are still too big for a normal person to survive going through the horizon.

First of all, BHs in fiction usually doesn’t work like real life BHs so a character could only be scaled to them if they show the features of a real life one.

As far as I know when you go through a BH you’re basically being pulled apart by tidal forces of infinite scale, so you’d need infinite durability. For most characters that’d be an outlier.

To escape a BH you’d need FTL speed, reality warping or teleportation which could work for some characters.

Then if a character doesn’t go through a BH but just resists being pulled in you could calculate a level of speed/AP/durability.

@eredin12: Where yo you find this stuff? Lol.

Mostly from reading about physics out of intrest lol.

Black holes are fodder. They’re like, solar system level. Anyone who is universal can destroy millions of black holes.

Thanos is weak.

Supermassive black holes can hold a multitude of stellar systems together.

@takenstew22: So multi solar? Maybe? Very weak.