Black holes will eventually lead to the formation of singularities, but it is not inevitable. The formation of a singularity and the fracture of space led to the emergence of anti-space and detonated many black holes.
At the same time, white holes and anti-space also exist, but anti-space and antimatter exist for a short time. White holes existed when the original galaxy was formed, so the time is not long. So far, none of them have been observed.
On the surface, black holes are constantly devouring objects, but the interior of black holes is actually compressing time and space. It can be understood that black holes transform matter into energy to compress space-time
When black holes devour objects to a certain energy, or because of the collision between black holes, time disappears at one point (the beginning of time equals the end), and the space is infinitely small. This is the formation of singularity.
The formation of singularity, the disappearance of this regional space, and the interlocking cause the fracture of other related spaces to disappear. This kind of fracture is the appearance of anti-space. Just like lightning in the dark, only fractures in the universe are faster than light, and fractures can be said to occur synchronously at infinite speed. This is the explosion of singularity.
The fracture/disappearance of space, the explosion of singularity, the disappearance of lightning in dense anti-space, and the continuous release of energy by countless lightning endings have impacted space and started to form white holes. The released energy collides/ejects matter at the speed of light, forming a new galaxy, which is why the galaxy is disk-shaped.
White holes release matter to form galaxies. Because of the light speed barrier in space, they can't run out of a straight line, and the white hole turns over at the core of the eventually formed galaxy, which is why the core of the galaxy is spherical. Because the edge of the galaxy is the first white hole to explode and release celestial bodies, the celestial bodies on the edge of the galaxy are older.