E-E-A-T stands for Experience, Expertise, Authoritativeness and Trustworthiness — the criteria Google's quality guidelines use to judge whether content deserves visibility, especially on topics that affect money or health. Signals include first-hand experience in the content, identifiable authors, citations from other sites and honest, verifiable claims.
AI engines apply the same logic when choosing whom to cite: demonstrated experience and consistency beat volume. It is why honest, specific content is a strategy, not a style choice.