As far as I know this is pretty much correct. This is why the universe is often reserved to as the "observable universe." Everything outside of that is so far away that not even the light can reach us and allow us to observe it.

Honestly I don't have a sure answer to that question. But I can guess.

Based soley on my own very limited knowledge, theoretically if the big bang happened over and over again infinite times, in a completely random fashion every time, you could eventually result in one where every particle ended up in the exact same place and in the exact same state, which could lead to the same nitrogen bonds forming, etc. and the events of this universe would perfectly repeat themselves.

The universe does not go for forever in terms of time, it goes for forever in terms of space.

The universe is expanding infinitely in the sense that everything is getting further and further apart from each other. Eventually, things will get so incredibly far apart that the space between each object will make it impossible for them to interact. Every star will go out and the universe will go dark, and realistically, nothing will ever happen again.

Many theorize that this will precede another big bang, but there is not enough solid evidence to support or disprove this.

I honestly have a feeling that if OP had never brought up the fact they were autistic at all, people would be significantly less judgmental. I've seen posts with fuck-ups severely worse than this and no one gives them this hard of a time about their mistake.

I'm sorry you have to deal with this. The way other ND folks seem to be the only ones able to actually understand what you're trying to say while everyone else is just downvote bombing you is really telling.

If you have time I would suggest art (in any form--like music, writing, drawing etc) or charity work.

"Sorry guys that was my cousin"

Does anyone in the world actually find posts like this helpful? It's a cartoon