Must a black hole be a point singularity?

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SUMMARY

The discussion centers on the nature of black holes and whether they must be point singularities. Participants argue that during stellar collapse, intense radiation pressure, described by the formula P = pc2, may prevent the formation of a singularity. They highlight that as mass converts to radiation, the resulting pressure could exceed gravitational forces, leading to alternative structures like a ring-shaped hole. The conversation also touches on the implications of General Relativity (GR) and Quantum Mechanics (QM) in understanding singularities and the potential for a unified theory of quantum gravity.

PREREQUISITES
  • Understanding of General Relativity (GR) principles
  • Familiarity with Quantum Mechanics (QM) concepts
  • Knowledge of radiation pressure and its mathematical representation
  • Basic grasp of the Schwarzschild radius and its implications
NEXT STEPS
  • Research the implications of the Tolman-Oppenheimer-Volkoff (TOV) equation in stellar collapse
  • Explore the concept of radiation pressure in astrophysical contexts
  • Investigate the current theories of quantum gravity and their relation to black holes
  • Study the characteristics of black hole event horizons and their significance
USEFUL FOR

Astronomers, physicists, and students of theoretical physics interested in black hole formation, the nature of singularities, and the interplay between gravity and radiation in extreme environments.

  • #61
Even better question: If somehow 10^18 kilograms of matter was contained in 1 cubic meter, and this matter was entirely converted into energy, and somehow contained in the 1 cubic meter, what do you think the pressure would be?
 
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  • #62
There might be an answer to: Why don't purple monkeys fly out of my butt? When I was in college a philosophy instructor taught that everything will happen if you wait a long enough time.
 
  • #63
I think you'll find that I converted your cm value to m.
 
  • #64
I have 2 squirrels jumping on me and can't even get m^2 or m^3 right. Well, actually that's not true... I get m^2 right 50% of the time.

So what's your pressure estimate if 10^18 kilograms of matter contained in 1 cubic meter was entirely converted into energy, and somehow contained in the 1 cubic meter?
 
  • #65
I'm not going to sit here all night and play number games with you. It is your job to show how your hypothesis disagrees with current theory and your job to back it up. You need to show us your numbers and not just make wild claims and expect everyone else to do the maths for you.

Now please state your point and explain why it differs to current theory, and then cite sources which prove / agree with your hypothesis. If you cannot do this then you are violating PF guidelines.
 
  • #66
jarednjames said:
I'm not going to sit here all night and play number games with you. It is your job to show how your hypothesis disagrees with current theory and your job to back it up. You need to show us your numbers and not just make wild claims and expect everyone else to do the maths for you.

Now please state your point and explain why it differs to current theory, and then cite sources which prove / agree with your hypothesis. If you cannot do this then you are violating PF guidelines.

I think you're right, this is clamshell with proper line formatting and prose instead of limerick!

Bernie: You've compared your position to Einstein, you've made declarative statements that are ABSURD without references, and you avoid clear questions. At this point, you sound like a crackpot trying to (less and less) obliquely forward a personal theory. In short, purple monkeys may fly out of your butt if you take enough LSD, but radiation isn't expect by ANY theory to behave in the manner you describe within an event horizon. PERIOD. If you have something direct to confront that well accepted notion, it's time to start giving sources, a paper... ANYTHING other than another post that gives me a damned headache.
 
  • #67
"You've compared your position to Einstein"

Come on. What I said was that Einstein didn't believe in a point singularity. Thats where the comparison, if any, ends. Calm down please. This is not the governor's election in New York.
 
  • #68
Bernie G said:
"You've compared your position to Einstein"

Come on. What I said was that Einstein didn't believe in a point singularity. Thats where the comparison, if any, ends. Calm down please. This is not the governor's election in New York.

So that's a no to references?
 
  • #69
Its a different idea. No references that I know of.

There might tangental similarities to ideas like quark–gluon plasma, but in my humble opinion even quarks would disintegrate at these high energies.

I'm taking the weekend off.
 
  • #70
Bernie G said:
in my humble opinion

And there it is, this is a personal theory and does not belong here.
 
  • #71
I have closed this thread.

Physics Forums rules,

https://www.physicsforums.com/showthread.php?t=414380,

to which everyone who registers here agrees, in part, state
Overly Speculative Posts: One of the main goals of PF is to help students learn the current status of physics as practiced by the scientific community; accordingly, Physicsforums.com strives to maintain high standards of academic integrity. There are many open questions in physics, and we welcome discussion on those subjects provided the discussion remains intellectually sound. It is against our Posting Guidelines to discuss, in most of the PF forums, new or non-mainstream theories or ideas that have not been published in professional peer-reviewed journals or are not part of current professional mainstream scientific discussion.
 

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