Black hole confusion Not uncommon, is it?

AI Thread Summary
The discussion centers around the relationship between black holes, their event horizons, and entropy. It confirms that the entropy of a black hole correlates with the surface area of its event horizon, which is the point of no return for light and matter. Gravitational strength is acknowledged to be proportional to mass, but light cannot escape a black hole; any radiation observed comes from matter heating up before crossing the event horizon. The surface area of a black hole increases with mass, challenging the idea that increased entropy would decrease the surface area. Overall, the conversation highlights the complexities and uncertainties surrounding black hole physics, particularly the interplay between general relativity and quantum theory.
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I’ll speak in terms of gravity instead of space-time in efforts to keeps this as simple as possible…

Question: The entropy of a black hole is in direct correlation with the surface area of the event horizon?

Question: The event horizon is the limit that light has reached before being curved back to the singularity?

Question: Gravitational strength is directly proportional to the mass of an object?

Question: How then can light escape further from a singularity if mass is added to the system?

Question: Wouldn’t the increase in entropy decrease the surface area of a singularity due to the more intensive gravitational force being applied to light?

I know this is not a very well understood subject but if someone could throw a theory my way I'm all ears...
 
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Question: The entropy of a black hole is in direct correlation with the surface area of the event horizon?
I believe so.

Question: The event horizon is the limit that light has reached before being curved back to the singularity?
Event horizon is point of no return for anything going in. What goes on inside is conjecture. General relativity and quantum theory are in conflict. Singularity is a guess - predicted by gen. rel., but very questionable by quantum theory.

Question: Gravitational strength is directly proportional to the mass of an object?
Yes

Question: How then can light escape further from a singularity if mass is added to the system?
Light cannot escape from a black hole. Radiation seen from the outside comes from matter heating up as it falls in.

Question: Wouldn’t the increase in entropy decrease the surface area of a singularity due to the more intensive gravitational force being applied to light
I'm not sure of the connection. Surface area of a black hole depends on its mass - specifically, black hole radius is directly proportional to mass.
 
If you think about it the event horizon has to be the furthest light makes it away from the singularity, if it wasn't then it would still be part of our observable universe.

The questions were somewhat rhetorical, I know the answers to the first ones but it is that last one that I am theorizing about. They were just my thought process in a form of a question.
 
3I/ATLAS, also known as C/2025 N1 (ATLAS) and formerly designated as A11pl3Z, is an iinterstellar comet. It was discovered by the Asteroid Terrestrial-impact Last Alert System (ATLAS) station at Río Hurtado, Chile on 1 July 2025. Note: it was mentioned (as A11pl3Z) by DaveE in a new member's introductory thread. https://www.physicsforums.com/threads/brian-cox-lead-me-here.1081670/post-7274146 https://earthsky.org/space/new-interstellar-object-candidate-heading-toward-the-sun-a11pl3z/ One...

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