If I understand it right, the universe will at some point in time expand so fast, that from any particular point in space, an observer will see an event horizon around himself.
This event horizon will radiate Hawking Radiation relative to the size of its surface.
As the universe expands faster, the event horizon becomes smaller.
The smaller a region of space is, the bigger its surface is relative to the space it contains.
So the smaller the event horizon gets, the less hawking radiation is emitted, but also the more “dense” the hawking radiation inside the event horizon gets.
The Hawking radiation bends space-time so that the expansion is locally slowed.
So, the faster space expands, the more it is slowed down by Hawking radiation?
Is there a point where the Hawking radiation would be so “dense”, that a black hole would form, that itself would give off Hawking radiation?
Would this create a region of space, that has an outer and an inner event horizon, the outer from its own expansion, the inner from a black hole inside?
Could the pressure from Hawking radiation press matter together?
Is there a speed of expansion, where the hawking radiation gets so “dense”, that it can locally slow down the expansion enough for matter from the Hawking radiation to accumulate?
Would the region slowed down by Hawking radiation be limited enough, that the surrounding space would still expand fast enough to create an event horizon?
Could the accumulation of matter happen fast enough for the mass of a universe to accumulate, before the event horizon would “break down” from the slowed down expansion?
Would such a slowed down region of space with it's newly created matter expand and behave in a way, that is compatible with what has been observed for our universe?
In this description, I might not always use the right terms and there are a few sub-questions, that come from parts of the question, that I am aware are unclear to me and that I did not want to formulate as statements. An answer to my question can take the sub-questions into account by using answers to them to answer my question, or by showing, that they are not relevant.