Free preprint: https://arxiv.org/abs/2404.03502

I really like this, thanks for sharing. I think the paper explains the concept much better than the abstract. It's the inverse of model collapse, maybe I would call it public alignment more than knowledge collapse. The influence of the general public all using a single knowledge model means that diverse opinions and knowledge will be drowned out and median opinions will crystalize, regardless of their accuracy. This is in contrast to scientific progress, which relies on discriminating good and bad arguments, rather than quantifying them.