Black holes never shrink.

“When two black holes collide and merge, they release gravitational waves. These waves can be detected by the LIGO-Virgo-KAGRA detectors on Earth, allowing scientists to determine the mass and spin of the black holes. The clearest black hole merger signal yet, named GW250114, recorded by LIGO in January 2025, offers new insights into these mysterious cosmic giants. Credit: Maggie Chiang for Simons Foundation” (ScitechDaily, Hawking Was Right: New Data Confirms Black Holes Never Shrink)

A black hole loses its mass, not its size. 

Hawking was right. The merged black hole’s surface area is as large as the merged black hole's total surface area. That means back holes don’t shrink. So, black holes don’t shrink when they send gravitational waves. The reason for that is in the universe’s expansion. The quantum fields that press a black hole into its form turn weaker. So, if that model is true, the reason for gravitational waves is in the universe’s expansion. When quantum fields turn weaker, they allow a black hole to send gravitational waves. We can think of a black hole as an onion with multiple internal structures. 

Or, shells. And the most out of those shells is the event horizon. When the gravitational wave travels out from the black hole, it sends one of its shells outside the black hole. And then the inner shell takes that escaped shell’s position. So the black hole’s size will be the same, because the energy, or quantum field that presses the black hole in its form, turns weaker. This means black holes’ evaporation does not have an effect on the black hole’s size. When the quantum field around it turns weaker.

A black hole sends so much energy. It can keep its energy level relatively at the same level as it was when the black hole formed. But what does that mean? If the end of the universe is the so-called big rip or big freeze, that means that in the very end of the universe, black holes’ existence ends. They release information that they stored inside their event horizon. But if the end of the universe is the Big Crunch, that means that the black holes start to grow. The model goes like this. The expansion of the universe continues.

But because the universe turns colder, the energy level of visible and dark energy decreases. The universe also leaks. Energy and radiation will travel out from the universe faster than particles . This means that. Gravity starts to win. When the universe’s expansion ends, and it starts to fall, the energy level and density of its quantum fields start to rise. That effect starts to pack material. And energy to the black holes. This means the black holes can expand. Or their size will be the same.

But anyway. Black holes start to travel. To each other. And in the ultimate fate, all black holes that pulled all radiation into them fall into the same point. The reason why the large black hole exists longer than the small one is. Because its surface area is larger. The outside quantum fields can press that black hole from a larger area than a small black hole. The surface area of a large black hole is relatively smaller. Than small black holes. That means energy loss in large black holes is smaller than in small black holes. So, a small black hole is less energy efficient than a large black hole. This means that a large black hole can exist. In lower-density areas. Than the small ones. This model raises interesting questions. If the density of the quantum and plasma fields around the black hole turns higher. 

Does the black hole stop sending gravitational waves? This requires that quantum fields and particles fall into the black hole symmetrically. When a black hole sends its most out shell away, that pulls radiation longer. Or traveling shell wraps the quantum field shorter in front of the traveling shell. And then. The valley or traveling ditch. Travels behind that short wavelength structure. 

But if the material and energy density around a black hole suddenly rises, that thing can deny the escape of the outermost shell. This means that if a black hole suddenly impacts a nebula. Or energy density in the way. Those particles. And energy impacts symmetrically with it. So, if a black hole pulls a nebula or some quantum field around it in symmetrical form, that symmetrical energy load can push radiation back into the black hole. 

https://scitechdaily.com/hawking-was-right-new-data-confirms-black-holes-never-shrink/

https://scitechdaily.com/the-universe-will-end-in-a-big-crunch-physicists-warns/

https://en.wikipedia.org/wiki/Hawking_radiation

https://en.wikipedia.org/wiki/Ultimate_fate_of_the_universe

The universe will end its existence in the Big Crunch.

"A Cornell physicist proposes that the universe is only halfway through its 33-billion-year lifespan, and will one day reverse course. Based on new dark-energy data, Henry Tye’s model suggests the cosmos will stop expanding in about 11 billion years and ultimately collapse into a “big crunch,” ending in a single point. Credit: Shutterstock" (ScitechDaily, 

The new model suggests that the universe. Ends its existence. In the Big Crunch. The Big Crunch means that gravitation wins and all particles fall into the center of the universe. Then that ultimate black hole detonates and forms a new universe. The reason for that is. The distances between particles and other objects will increase. That makes gravitational interactions weaker. In the same way. The other three fundamental interactions turn weaker. 

And another thing is that. The universe leaks. The wave movement or energy travels faster than most particles. And that means wave movement travels before particles. That means the universe loses its energy all the time. Dark energy that rips the universe into pieces will turn weaker because the normal scattering effect doesn’t disturb that wave movement in the same way as other types of wave movement. 

“The local geometry of the universe is determined by whether the density parameter Ω is greater than, less than, or equal to 1. From top to bottom: a spherical universe with Ω > 1, a hyperbolic universe with Ω < 1, and a flat universe with Ω = 1. These depictions of two-dimensional surfaces are merely easily visualizable analogs to the 3-dimensional structure of (local) space.” 

If Ω = 1, the universe is flat.

If Ω > 1, there is positive curvature.

If Ω < 1, there is negative curvature.

If the density parameter is higher than one, Ω > 1, the universe will collapse. The problem is that the universe should be round anyway. Without depending on the main  shape. So the universe is not square. It's like some CD or round disk.

This means dark energy travels out from the universe. The third interesting thing is that the geometrical shape of the universe could be anything, but its farthest edge is a round or parabolic shape. The geometrical shape of the universe can be any one of those three possible forms, but those forms should be made of a round shape. So if the universe is flat, the shape of the universe is like a CD rather than a square. 

This means gravitation should win, and the universe will fall. Into one point. This means that things like a phoenix-universe could be possible. There is evidence in the Black Hole radiation. could involve information about the past universes that existed before our universe. So if the model. The spherical universe forms and falls again. And again turns real. The universe before the last is larger than the next universe. The reason for that is that not all energy will return to the point where the universe formed. This is one version of the cosmological mystery. And the thing that we should know is this. 

The universe has a beginning and an end. The end is the mystery. But if the end of the universe is the Big Crunch, that means matter forms a giant black hole, which will vaporize or detonate. Because matter cannot just vanish, that means the phoenix universe model is possible. 

https://news.cornell.edu/stories/2025/10/physicist-after-33-billon-years-universe-will-end-big-crunch

https://scitechdaily.com/the-universe-will-end-in-a-big-crunch-physicists-warns/

https://en.wikipedia.org/wiki/Big_Crunch

https://en.wikipedia.org/wiki/Shape_of_the_universe