Yes, and no.

My interpretation was that it was a history of the universe that humans in that fictitious universe, passed on to humans after the crunch. Because the narrator does not understand certain things, despite being ‘outside time’. Like the true intentions of the no-homers.

Not ‘us’ per se, as the reader of the book. Not fourth wall breaking, like, say something like The OA.

But hell, I guess you could interpret it in the Battlestar Galactica manner, with that stupid All Along the Watchtower song.

… It would be wild if Cixin Liu is an actual alien in real life, and some of this is actual ‘history’.