Shu Sheng
Black holes grow by absorbing matter, which includes galaxies and black holes. Would the growth of black holes overtake the expansion of space time and collapse the entire universe?
No. Black holes are very small objects and the distances in space are extraordinarily large. Compressing all of the mass of the Milky Way into a single black hole would result in a black hole that is a tiny, tiny fraction of the Milky Way in size. In addition, to stop the expansion of the universe we would need more matter/energy to create more gravity that would slow and eventually reverse the expansion. But even including dark matter we don't have enough. The creation of a black hole does not create more gravity, it simply concentrates it. For example, if the Sun were compressed into a black hole, the planets would continue in their orbits as if nothing had happened.Black holes grow by absorbing matter, which includes galaxies and black holes. Would the growth of black holes overtake the expansion of space time and collapse the entire universe?
it is possible but on opposite condition that the expansion of space-time overtake the growth of black hole means by the entropy of time ,space more and more expand like a sheet losing its thickness which may lead to more growth of black hole and by emerging in one another the whole mass of universe return to big bang singularityBlack holes grow by absorbing matter, which includes galaxies and black holes. Would the growth of black holes overtake the expansion of space time and collapse the entire universe?
This does not make sense. Can you restate what it is that you are saying?it is possible but on opposite condition that the expansion of space-time overtake the growth of black hole means by the entropy of time ,space more and more expand like a sheet losing its thickness which may lead to more growth of black hole and by emerging in one another the whole mass of universe return to big bang singularity
hence the universe collapse,
and new universe begins.............
How would the expansion of space time lead to the growth of a black hole? Cosmological expansion does not make things larger.it is possible but on opposite condition that the expansion of space-time overtake the growth of black hole means by the entropy of time ,space more and more expand like a sheet losing its thickness which may lead to more growth of black hole and by emerging in one another the whole mass of universe return to big bang singularity
No, it is not. It is an estimate of the OBSERVABLE universe. The whole universe is unknown in scope but likely at least orders of magnitude larger than the observable universe and possibly infinite.According to NASA/WMAP, that is a somewhat reasonable "Mass of the Universe" estimate ...