[Bored chemist]

Maybe that's because you are such a bonehead,

It's not me who is refusing to learn.

In any case, your question about why thermalisation did not take place, makes no sense.

Just because you can't answer it doesn't mean it's a bad question (If anything, it probably indicates that it is a good question)/

The question makes sense; your lack of an answer also makes sense- if we assume that it's because you are wrong (and there's other supporting evidence for that suggestion).

It didn’t take place and Dark Matter is the proof of that,

That's no proof at all.
At best you are begging the question.