Matter ingestion rate of blackholes

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Discussion Overview

The discussion revolves around the ingestion rate of matter by black holes and its implications for the universe. Participants explore questions related to the pressure differences between universes, the dependence of matter consumption on black hole size, calculations for estimating matter loss, and potential connections to the size of a destination universe or multiverse.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • Some participants question whether the ingestion of matter by black holes implies that the pressure of our universe is higher than that of the destination universe or multiverse.
  • There is a suggestion that the rate of matter consumption by black holes may depend on their size or mass.
  • A participant inquires if there are calculations available to determine the amount of matter consumed by a black hole of a specific size.
  • Another question raised is whether it is possible to estimate the total amount of matter lost from our universe due to black holes.
  • Some participants argue that matter falling into a black hole does not leave our universe and retains its gravitational identity.
  • One participant mentions that matter inside a black hole is at a low level of gravitational potential energy and that energy is released during the ingestion process.
  • Another viewpoint suggests that black hole entropy relates to the matter consumption, which is proportional to the horizon area of the black hole.

Areas of Agreement / Disagreement

Participants express differing views on whether matter consumed by black holes leaves our universe and the implications of this consumption. The discussion remains unresolved regarding the calculations and estimates related to matter loss and the characteristics of the destination universe.

Contextual Notes

There are limitations in the assumptions made about the nature of black holes and the definitions of terms like "matter consumption" and "pressure" in this context. The discussion also reflects uncertainty about the calculations and their applicability to the broader universe.

rjpearce
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Sorry if my questions are rather naive, this is my first post on this forum.
Whilst burshing my teeth, I was watching water drain from the sink and came up with a few rather curious questions.

Does the ingest of matter suggest by black holes suggest that the pressure of our universe is higher than that of the destination universe/multiverse?

Does the rate of matter consumption for black holes depend entirely on the size/mass?

Is there any calculation that exists to calculate the amount of matter consumed by a black hole of a specific size?

Could this be used to estimate the total amount of matter lost from our universe owing to black holes?

If so, is there any calculation that can be done to estimate the size of the destination universe/multiverse based on the ingest of matter from our universe?

Thanks
-Richard
 
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Matter that falls into a black hole does not 'leave' our universe. A black hole continues to affect other objects in the universe with the collective gravity of all the matter it has 'consumed'. It is reasonable to assume this means the matter captured by a black hole at least retains its gravitational identity.
 
rj Welcome to the forum. I look upon matter inside a BH as being at the lowest possible level of gravitational potential energy. Energy must have been released on the way in. That's about as much as I hopefully know, let's see what the others say.
 
matter consumption = whatever matter goes into the black hole

and as chronos said the matter is still in our universe

the only type of matter "consumption" is black hole entropy(http://en.wikipedia.org/wiki/Black_hole_thermodynamics), which can be seen as absorbing virtual particles of negative mass, and that's only proportional to the horizon area of the black hole itself
 

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