Is there a lining to our Universe?

Click For Summary

Discussion Overview

The discussion revolves around the question of whether the universe has a limited capacity for mass and the implications of black holes in relation to spacetime. Participants explore conceptual misunderstandings related to general relativity and the nature of gravity, as well as the influence of popular science interpretations on these ideas.

Discussion Character

  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant questions the concept of a limited capacity for mass in the universe and expresses confusion about black holes and spacetime.
  • Another participant challenges the notion of a limited capacity for mass, asking for sources and clarifying that it is not spacetime that fails, but rather our understanding of extreme gravity.
  • A participant suggests that the original question stems from a misunderstanding of general relativity, indicating that it may not be answerable as posed.
  • There is a claim that black holes occur when mass is compressed to a point where spacetime curvature prevents escape.
  • Some participants emphasize the need for references to support claims made about physics, questioning the validity of the ideas presented.
  • A later reply acknowledges the misunderstanding and suggests a resource for better understanding relativity, indicating the limitations of popular science explanations.

Areas of Agreement / Disagreement

Participants express differing views on the original question, with some asserting it is based on misconceptions while others attempt to clarify the concepts involved. No consensus is reached regarding the validity of the original claim about the universe's capacity for mass.

Contextual Notes

Participants note that the discussion is influenced by popular science interpretations, which may oversimplify complex physics concepts. There is acknowledgment of the limitations of understanding without mathematical grounding.

Andre55
Messages
2
Reaction score
0
TL;DR
Why does our universe have a limited capacity for mass?
I was wondering if someone could answer my question. I know I may be dumb but I don't really understand why our universe has a limited capacity for mass. If I remember correctly black holes occur when concentration of mass causes a hole in spacetime. I don't really understand I guess how space time could fail. I'm sorry if this question makes no sense.
 
Physics news on Phys.org
What makes you think our universe has a limited capacity for mass?
Where did you read this?
What does this have to do with black holes?

It is not spacetime that's is failing, it is simply our understanding of what happens in the presence of extreme gravity that fails.
 
  • Like
Likes   Reactions: Andre55
Andre55 said:
TL;DR Summary: Why does our universe have a limited capacity for mass?

I was wondering if someone could answer my question. I know I may be dumb but I don't really understand why our universe has a limited capacity for mass. If I remember correctly black holes occur when concentration of mass causes a hole in spacetime. I don't really understand I guess how space time could fail. I'm sorry if this question makes no sense.
It's not a dumb question, but sounds to me like a question arising from some popular science overly simplistic version of the General Theory of Relativity (GR). As such, the question appears to be based on a misconception of the physics and cannot sensibly be answered.
 
  • Like
Likes   Reactions: Andre55 and russ_watters
I'm afraid the question makes no sense.

Black holes will occur (loosely speaking) when mass is compressed so far that spacetime is sufficiently curved that no paths into the future lead outwards.
 
@Andre55 you need to give a reference for where you are getting these ideas from. None of them look anything like valid physics.
 
PeroK said:
It's not a dumb question, but sounds to me like a question arising from some popular science overly simplistic version of the General Theory of Relativity (GR). As such, the question appears to be based on a misconception of the physics and cannot sensibly be answered.
Thanks for clarification that makes more sense. I am not a physicist so popular science media is pretty much my only understanding of physics. The misunderstanding probably arose from there.
 
Andre55 said:
Thanks for clarification that makes more sense. I am not a physicist so popular science media is pretty much my only understanding of physics. The misunderstanding probably arose from there.
You could check out Relativity For Poets, which is a freely downloadable book by Ben Crowell, a former moderator here. There's only so far you can go without maths, but this is an honest try. https://www.lightandmatter.com/poets/
 

Similar threads

  • · Replies 22 ·
Replies
22
Views
1K
  • · Replies 20 ·
Replies
20
Views
2K
  • · Replies 9 ·
Replies
9
Views
1K
  • · Replies 14 ·
Replies
14
Views
2K
  • · Replies 17 ·
Replies
17
Views
4K
  • · Replies 31 ·
2
Replies
31
Views
2K
  • · Replies 23 ·
Replies
23
Views
4K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 67 ·
3
Replies
67
Views
6K
  • · Replies 51 ·
2
Replies
51
Views
5K