Well, I have never been accused of being an llm, also never used any of them.

Scientists are trying to figure out what is causing these effects and with no readily available answer they give it a place holder name, it could be a single particle type in larger amounts that do not get affected by the light we see. I think there is a lot they are getting wrong with the age and consistency of the universe over time using the current methods, tho I do accept it as the best we can come up with due to our limited knowledge and data gathering abilities. Every time a new bigger better equipped telescope comes out we learn that we had something wrong and now we can "see" it. With our tenacity we will discover what it all is, or we will get wiped out, one day.

The scientists have not shrugged their shoulders, they are trying to figure it out, atoms were a hypothesis, molecules were a hypothesis, viruses and bacteria were also a hypothesis until we saw them with technology. This hypothesis of mine has been rattling around in my head for years along with the possibility that inside black holes are entire universes like ours. But I am no scientist so even using hypothesis is a strong word. I do watch certain astrophysicists to learn what I can without delving into the maths.

I would guess that my multiple overlapping universes that cannot see or physically interact with each other would be a source of gravity we cannot find the source of that makes our universe the way it is with the spiderweb of matter that was mapped.

What is your hypothesis?