Not directly. It is the framework rater guidelines use; the algorithm proxies for it through measurable signals like the ones above.
Important — Google added it in response to AI-generated content flooding YMYL topics. First-hand experience is now a key differentiator.
Yes. E-E-A-T is about clarity and authenticity, not enterprise scale. A practitioner writing about their daily work outperforms a content factory in YMYL topics.
Without disclosure and human editorial layer, yes. With clear human oversight, expertise tagging, and original substance, AI-assisted content can pass.