Given that the standard density of a black hole inside its Schwarzschild radius is inversely proportional on the square of its mass, supermassive black holes are much less dense than stellar black holes. The average density of a 108 M☉ black hole is akin to that of drinking water.[184] As https://econopass.com/news/science-technology/7-mind-blowing-ways-the-technological-singularity-will-transform-humanity/