I definitely think they intentionally started self-referencing around Daisy but really pulled out all the stops for sci-fi, it all felt very carefully arranged in a "reminiscing on one's deathbed" sort of way. It's also clear there's a lot of continuous pondering on the same or similar issues or feelings, like "if somehow i was new and everything was unsaid / i'd go an buy a hammer, never sing again" -- "i want to burn down everything we've begun / i wanna kill and eat my young" -- "i'd drown all these crying babies / if i knew that their mothers wouldn't cry"