In reference to some other comments I've seen on uploads of the track "Random Gods", I really like the idea that the loud, booming music that plays close to an Iterator's puppet chamber is diegetic and literally just the sound of them thinking/functioning...
This is giving me BIG Five Pebbles vibes, but not as dire, it seems that he has some hope despite the situation, and is quite calm, holding fast and steady. But sadly, his illness comes at a cost.. His Memory Conflux, that yellow stuff has gotten to him? Whatever it is called. I theorize that his mind may be slowly being erased, or at least damaged, but only a little bit, causing him to forget some important information. Don't you think? Yes I know CW is technically a Them due to probably not being integrated with any gender specific code, yet I feel like most they/them whatever you call them Iterators pronounce Masculine traits, maybe that is just me?
I think CW mentioned that it's his sulfur processing bacteria running wild. Edit: also, if we're gonna judge by the chamber color, it seems that CW is not feeling so good, as the only time we see such dark red is in pre-collapse moon's chamber after reaching the ending, which is probably because she is about collapse. CW doesn't seem to be near his collapse, but his memory conflux is definitely not healthy