The Galaxy is a paradox

 And if our galaxy is a paradox then all galaxies are a paradox.

Why?

The Black hole in the center of each galaxy both creates and destroys.

This dynamic creates the paradox that all galaxies are.

The Black hole in the center of each and every Galaxy eats stars and planets while at the same time making stars and planets capable of their life cycles further out into the galaxy.

So, while on the one hand it is constantly eating stars, planets Nebulae in towards the core of each and every galaxy out further it provides the necessary environment for stars and planets and Nebulae to form where they Could NOT in the vacuum of open space away from a galaxy.

So, one way to view this is that a galaxy is a living thing, digesting stars and planets at it's core while at the same time providing gravity with things spinning around it which are the galaxy itself and providing life cycles for stars, planets, Nebulae, asteroids, comets and other things further out.

But, likely eventually all those stars and planets will eventually (likely at some point) be eaten by the Black hole in the center of each galaxy. And at that point there would only be the black hole left that once was the center of each galaxy. However, this would take a great deal of time, too long for humans likely to fathom effectively the whole life cycle of a galaxy.

So, in this sense each galaxy is a paradox because it eats stars and planets while also allowing new stars and planets to form further out.

This is one reason I compare a galaxy to a waterfall here on earth. Because a waterfall is also a paradox. On the one hand it kills bacteria and other lifeforms in the river but it purifies the water which allows other lifeforms to better live down stream. So, a galaxy is like a waterfall in space and about as common as waterfalls on earth.

To a lesser degree a galaxy is also like a breaking wave on the ocean too at the shore of the land. It is a transitional state of being between the non-time and non-space of Dark Matter (unknown matter) and the transition to matter and anti-matter of a galaxy.

My theory is that beyond the Black hole in the center of the Galaxy is a duplicate galaxy made of Anti-matter. However, to make this work it would have to be in a different dimension than this one. So, I'm not sure you would call this place "matter" or have time at least as we know time to be.

So, my theory is that the anti-matter galaxy and the matter galaxy that we live in allow both the matter galaxy and the anti-matter galaxy to exist concurrently in some sort of balance before they both fall back into Dark matter which is 96% of the known universe.

And Galaxies only are about 4% of the known universe.

What happens to the black hole between the two I cannot presently say. But my theory might be that at some point in the future it turns back into Dark matter (unknown matter) too somehow as the black hole having eaten everything in site then degrades and becomes dark matter somehow once again which is the "NORMAL' State for the universe sort of like the river and the earth itself is the "Normal State for earth and the sea (without waves crashing on the beach) is the "Normal state) for earth.

My thought is that once a black hole eats everything in sight at some point without having anything else to eat it either would degrade or get eaten up by an ever bigger black hole.

I'm also not sure what we define a Black hole to be is entirely accurate simply because we cannot at present send something into a black hole and have it send back information at present that I know of.

So, therefore we can ONLY theorize the properties of a black hole by what it does to stars and planets and asteroids and comets and meteorites that it sucks into black holes