this post was submitted on 17 Aug 2025
122 points (95.5% liked)

No Stupid Questions

43032 readers
642 users here now

No such thing. Ask away!

!nostupidquestions is a community dedicated to being helpful and answering each others' questions on various topics.

The rules for posting and commenting, besides the rules defined here for lemmy.world, are as follows:

Rules (interactive)


Rule 1- All posts must be legitimate questions. All post titles must include a question.

All posts must be legitimate questions, and all post titles must include a question. Questions that are joke or trolling questions, memes, song lyrics as title, etc. are not allowed here. See Rule 6 for all exceptions.



Rule 2- Your question subject cannot be illegal or NSFW material.

Your question subject cannot be illegal or NSFW material. You will be warned first, banned second.



Rule 3- Do not seek mental, medical and professional help here.

Do not seek mental, medical and professional help here. Breaking this rule will not get you or your post removed, but it will put you at risk, and possibly in danger.



Rule 4- No self promotion or upvote-farming of any kind.

That's it.



Rule 5- No baiting or sealioning or promoting an agenda.

Questions which, instead of being of an innocuous nature, are specifically intended (based on reports and in the opinion of our crack moderation team) to bait users into ideological wars on charged political topics will be removed and the authors warned - or banned - depending on severity.



Rule 6- Regarding META posts and joke questions.

Provided it is about the community itself, you may post non-question posts using the [META] tag on your post title.

On fridays, you are allowed to post meme and troll questions, on the condition that it's in text format only, and conforms with our other rules. These posts MUST include the [NSQ Friday] tag in their title.

If you post a serious question on friday and are looking only for legitimate answers, then please include the [Serious] tag on your post. Irrelevant replies will then be removed by moderators.



Rule 7- You can't intentionally annoy, mock, or harass other members.

If you intentionally annoy, mock, harass, or discriminate against any individual member, you will be removed.

Likewise, if you are a member, sympathiser or a resemblant of a movement that is known to largely hate, mock, discriminate against, and/or want to take lives of a group of people, and you were provably vocal about your hate, then you will be banned on sight.



Rule 8- All comments should try to stay relevant to their parent content.



Rule 9- Reposts from other platforms are not allowed.

Let everyone have their own content.



Rule 10- Majority of bots aren't allowed to participate here. This includes using AI responses and summaries.



Credits

Our breathtaking icon was bestowed upon us by @Cevilia!

The greatest banner of all time: by @TheOneWithTheHair!

founded 2 years ago
MODERATORS
 

Feeling like taking a vacation.

top 50 comments
sorted by: hot top controversial new old
[–] remon@ani.social 147 points 1 week ago
[–] dual_sport_dork@lemmy.world 72 points 1 week ago (4 children)

You evaporate over billions of years via Hawking radiation.

[–] rikudou@lemmings.world 31 points 6 days ago (1 children)

Try more like trillions of trillions of trillions... repeat a few more times.

load more comments (1 replies)
[–] TranquilTurbulence@lemmy.zip 13 points 6 days ago* (last edited 6 days ago) (1 children)

As if being shredded to atoms wasn't harsh enough, you don't even get keep your neutrons and electrons in this process. I guess it still counts as "exiting" the black hole, but just barely.

load more comments (1 replies)
load more comments (2 replies)
[–] Kolanaki@pawb.social 41 points 6 days ago (1 children)

Generally speaking, as Hawking Radiation.

[–] HeyThisIsntTheYMCA@lemmy.world 10 points 6 days ago (1 children)

what if i want to use my legs afters

[–] adespoton@lemmy.ca 6 points 6 days ago (1 children)

You’d have to build them first.

Anything more complex than an atom is going to be disintegrated before it even enters a black hole due to the intense energies at play at the interface.

[–] Tinidril@midwest.social 8 points 6 days ago

Anything as complex as an atom will be disintegrated too.

[–] dogs0n@sh.itjust.works 36 points 6 days ago (1 children)

When you're ready, you should see a bookshelf. Start messing with the books to send a message to your daughter and maybe she will help you.

Prerequisites: daughter

load more comments (1 replies)
[–] JPSound@lemmy.world 32 points 6 days ago (5 children)

Literally, impossible. To exit the event horizon of a black hole, you'd have to travel faster than the speed of light. We know for a fact that anything with mass cannot travel at the speed of light. (And anything without mass MUST travel at the speed of light) Once you cross the event horizon, you've been entirely and irreversibly separated from the rest of the universe.

[–] WoodScientist@sh.itjust.works 11 points 6 days ago (1 children)

It's not even about needing to exceed the speed of light. Once you cross the event horizon, spacetime around you is so warped that "out" doesn't exist anymore. Point your ship in any direction and fire up your FTL engine; it doesn't matter. No matter which way you try and fly your ship, you'll be getting closer to the center. Once you cross the event horizon, there is literally no way out.

[–] JPSound@lemmy.world 4 points 6 days ago* (last edited 6 days ago)

I love how mind bending it is imagining what lies inside a black hole. Everything we know about physics may essentially go right out the window beyond the event horizon.

load more comments (4 replies)
[–] zakobjoa@lemmy.world 24 points 6 days ago (1 children)
[–] db2@lemmy.world 22 points 1 week ago (3 children)

You wait for it to reach a critical mass and explode. Might take a little while.

[–] remon@ani.social 29 points 1 week ago

You're maybe thinking of white dwarfs. Black holes don't do that.

[–] victorz@lemmy.world 9 points 1 week ago (2 children)

Do they do that? Is that what the Big Bang was?

[–] remon@ani.social 33 points 1 week ago (1 children)
[–] Lumidaub@feddit.org 8 points 1 week ago (1 children)

That's a hypothesis though, right? They haven't detected any yet afaik (which the article could make clearer in its introduction).

[–] remon@ani.social 7 points 1 week ago (5 children)

Yeah, it mentions it at the end under the "Experimental observation" section.

load more comments (5 replies)
[–] timroerstroem@feddit.dk 13 points 1 week ago (6 children)

More or less. In my layman's understanding: Black holes 'evaporate' slowly through Hawking radiation, losing mass as a function of their surface area (simplistically, particle/anti-particle pairs 'pop out of nothing' near the event horizon, one gets swallowed up the other escapes, this means a net loss of energy, which has to 'paid' by the black hole losing mass, think E=mc^2^).

Since a black hole behaves (geometrically) like any other sphere, the proportion of its area to its volume will grow as the black hole loses mass (i.e. it will have more and more relative area the smaller it gets), this process speeds up over time thus ending in what I guess you could call an explosion (more a whimper than a bang, to borrow a phrase).

Part 2 of your question: We don't know.

load more comments (6 replies)
load more comments (1 replies)
[–] zeropointone@lemmy.world 21 points 6 days ago (4 children)

Just use the same technology that allowed you to enter a black hole without dying.

[–] JPSound@lemmy.world 19 points 6 days ago* (last edited 6 days ago) (6 children)

With super massive black holes, you could pass the event horizon and not even know it. To you, everything would remain relatively (no pun intended) comfortable. You could live for a couple days, falling towards the singularity before the gravitational gradient becomes enough to rip you apart, thus ending your life.

load more comments (6 replies)
load more comments (3 replies)
[–] phoenixz@lemmy.ca 20 points 6 days ago (6 children)

Space time gets so curved that literally every direction around you is the center of the black hole.

You look forward? Black hole center.

Behind you? Center

Up down? You guessed it

From your perspective, the center literally is the only direction you can go, deeper.

[–] DeathByBigSad@sh.itjust.works 17 points 6 days ago

Have 5D future humans put you in the tesseract, then you exit seeing your daughter on their deathbed while you barely aged a day.

[–] nikosey@lemmy.world 16 points 6 days ago (1 children)

don't fight against gravity by trying to fly directly towards the universe. Instead, fly parallel to the universe until you are out of the black hole's pull, then angle back towards the universe.

load more comments (1 replies)
[–] Strider@lemmy.world 14 points 6 days ago* (last edited 6 days ago) (2 children)
[–] _cryptagion@lemmy.dbzer0.com 7 points 5 days ago (2 children)

since black holes are incredibly common in the universe, if everything that went into a black hole came out the "other end" from a white hole, then it would logically follow that white holes would also be incredibly common. however, while white holes might exist, nobody has ever observed one, or found any mechanism capable of creating one, or evidence suggesting that they even exist, or have ever existed, or will ever exist. meanwhile, we have directly imaged the accretion disk around a supermassive black hole.

one definitely exists, the other is firmly within the realm of theoretical only, where it is expected to stay indefinitely.

load more comments (2 replies)
load more comments (1 replies)
[–] Im28xwa@lemdro.id 11 points 6 days ago (1 children)
[–] Notyou@sopuli.xyz 4 points 6 days ago

Exactly, when you're going through hell, keep going. Maybe you'll find a white hole in the other end with a new universe to explore.

[–] JcbAzPx@lemmy.world 9 points 5 days ago

You'll be slowly radiated out one half of an entangled pair of particles at a time. Arranging for reconstruction might prove difficult.

[–] allo@sh.itjust.works 9 points 6 days ago

with a stronger blackhole next to your blackhole. just have a stronger pull.

its like how do u have bribed politicians not vote according to that bribe: bribe them with a bigger bribe.

[–] Zachariah@lemmy.world 8 points 1 week ago (3 children)
load more comments (3 replies)
[–] Fleur_@aussie.zone 7 points 5 days ago (6 children)

Are you capable of moving faster than the speed of light?

load more comments (6 replies)
[–] hungryphrog@lemmy.blahaj.zone 7 points 5 days ago
[–] AA5B@lemmy.world 6 points 6 days ago

As a jet of energy, assuming you haven’t actually crossed the event horizon

[–] thatradomguy@lemmy.world 6 points 6 days ago

feed it taco bell

[–] xePBMg9@lemmynsfw.com 5 points 6 days ago (3 children)

With the assumption that we are alright in there, wait until it evaporates naturally. I hope you brought a lot of books, cause depending on its mass, it can take some time.

load more comments (3 replies)
[–] zaphod@sopuli.xyz 5 points 5 days ago

That's the fun part, you don't.

[–] wreckedcarzz@lemmy.world 4 points 6 days ago

You go into a white hole, duh

[–] Asidonhopo@lemmy.world 4 points 6 days ago
load more comments
view more: next ›