Last September, Lily Ray asked Perplexity for the latest news on SEO and AI search. It told her, confidently, about the “September 2025 ‘Perspective’ Core Algorithm Update”; a Google update that, as she then wrote at length in “The AI Slop Loop,” didn’t exist. Google hasn’t named core updates in years. “Perspectives” was already a SERP feature. If a real update had rolled out while she was in Austria, her inbox would have told her before Perplexity did.
She checked the citations. Both pointed at AI-generated posts on SEO agency…

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