I can’t find the specific article, but it was basically arguing that prions are an unavoidable existential crisis that will eventually kill everything on the planet. The basis was the fact that they are virtually indestructible, can lie latent in our environment indefinitely and basically just always make more of themselves.

Mind you, the time frame for this particular apocalypse would be pretty big. It was still an eerie thought though, just like this inexorable accumulation of alien/bizarro world proteins that would eventually kill/convert everything. I guess it’s kinda like the grey goo planet theory.

Anyway, we’ll almost certainly kill ourselves via climate change or massive war first, so no need to worry too much about prions.