To push this metaphor, I'm very curious to see what happens as new organic training material becomes increasingly rare, and AI is fed nothing but its own excrement. What happens as hallucinations become actual training data? Will Google start citing sources for their AI overviews that were in turn AI-generated? Is this already happening?

I figure this problem is why the billionaires are chasing social media dominance, but even on social media I don't know how they'll differentiate organic content from AI content.