this post was submitted on 21 Jul 2025
1531 points (99.0% liked)

Science Memes

20623 readers
2454 users here now

Welcome to c/science_memes @ Mander.xyz!

A place for majestic STEMLORD peacocking, as well as memes about the realities of working in a lab.

Click here for our list of resources.

If you are here asking: "Is this a science meme?"

Probably, yes. We use the Dawkins definition of meme: a replicating idea, not just an image macro with a fact on it. A good post here doesn't need to teach you something. It needs to make you ask something: who, what, where, when, and especially why.

Science isn't a filing cabinet of facts, it's a conversation. For example, a photo of an eel or other localized wildlife counts because most people never see one, and wonder is the first step of inquiry. A car meme counts if it makes you curious about what's under the bonnet. If you want to talk about something you noticed in the world, chances are someone else wants to talk about it too.

We moderate for vibe, not category. Pruning is light, especially where a post creates interesting discussion. Experimenting is encouraged.

See the pinned paper on Shitposting as Public Pedagogy if you want the academic case for why this works.

Rules

  1. Don't throw mud. Behave like an intellectual and remember the human.
  2. Keep it rooted (on topic).
  3. No spam.
  4. Infographics welcome, get schooled.

Research Committee

Other Mander Communities

Science and Research

Biology and Life Sciences

Physical Sciences

Humanities and Social Sciences

Practical and Applied Sciences

Memes

Miscellaneous

founded 3 years ago
MODERATORS
Sal@mander.xyz
fossilesque@mander.xyz
SciBot@mander.xyz
fossilesque@lemmy.dbzer0.com
1531
well? (mander.xyz)
submitted 11 months ago by fossilesque@mander.xyz to c/science_memes@mander.xyz
187 comments fedilink hide all child comments
 
you are viewing a single comment's thread
view the rest of the comments
[–] Cethin@lemmy.zip 8 points 11 months ago* (last edited 11 months ago) (1 children)

No, time does not become irrelevant. It's perfectly normal for things inside the black hole. Here's the space time diagram for our universe on the right, and a black hole at the top-left. Time is the vertical axis, space is the horizontal. The speed of light is a 45° angle, and the solid lines are event horizons. The hourglass shapes are the cones of all your possible futures and pasts (aka, anywhere that isn't faster than the speed of light from a position). Notice the space-time diagram looks exactly the same on the other side of the horizon. To get back through though you'd have to travel faster than that 45° angle, which is impossible.

Edit: I remembered there's a PBS Space Time video that will help you understand this if you don't. It goes a lot further than just this version of the diagram.

[–] PleaseLetMeOut@lemmy.dbzer0.com 1 points 11 months ago* (last edited 11 months ago)

I'm aware of the Penrose diagram and also watch PBS SpaceTime :)

But I was referring more to the frame of reference of our universe vs that of being inside a blackhole (assuming you could magically avoid being ripped apart by gravity). To an observer inside a blackhole, "time" on the outside would blink by almost instantly. I wasn't talking about moving through an infinite universe or near/into a black hole. Just stationary, floating just beyond the event horizon, looking out. Hence the asterisk on basically*.

I was leading them to what MotoAsh posted. But they beat me to it while I was typing.

Edit: He even references what I'm talking about at 0:44 in the SpaceTime video. But from the frame of reference of an outside observer.