Where is the conflict now? GR works nicely with a < 1.EinsteinKreuz said:There is clearly a conflict between theory and observation about rotating black holes. Because there is already observational evidence for black hole in the heart of M87 that shows evidence of rapid rotations by means of its relativistic jet. Seems like GR and quantum gravity need to really catch up and explain how these things exist and hold themselves together.
Yes, it is possible for a black hole to have a density comparable to an entire galaxy. This is known as a supermassive black hole, which can have a mass equivalent to billions of suns and can be found at the center of most galaxies.
The density of a black hole is measured by calculating its mass and dividing it by its volume. This can be difficult to determine accurately, as the volume of a black hole is infinitely small and its mass is concentrated in a single point.
No, the density of a black hole can vary depending on its mass. Smaller black holes tend to have a higher density, while larger ones can have a lower density due to their larger volume.
Yes, a black hole's density can change over time as it accretes matter from its surroundings. As it consumes more matter, its mass increases and its density may decrease due to the increase in volume.
The density of a black hole is directly related to its gravitational pull. The higher the density, the stronger the gravitational pull. This is why supermassive black holes have such a strong gravitational pull, as their density is extremely high.