<b>The two E's most people conflate</b>

<b>The two E's most people conflate</b>

The question: when Google added the second E to E-A-T in December 2022, did it actually change ranking systems, or just the rater instructions?

The evidence points to the latter. Experience and Expertise are evaluated as distinct dimensions in the Quality Rater Guidelines, but they are not separate ranking signals — the QRG is a calibration document for human raters who train and evaluate systems, not an algorithm spec. Per the guidelines, Experience answers 'has the author lived this?' while Expertise answers 'does the author have formal knowledge?' A product review by someone who owned the item for a year scores high on Experience even with zero credentials. A peer-reviewed surgeon writing about a disease scores high on Expertise.

Why the distinction matters operationally: these dimensions trade off by topic. For 'is this restaurant good' Experience dominates and credentials are nearly irrelevant. For 'what dose of this drug is safe' Expertise dominates and lived experience can be actively dangerous.

Counter-evidence to the hype: there is no documented 'experience score' in any leaked system or Google statement. The Navboost and quality systems revealed in the 2024 antitrust disclosures operate on click and link patterns, not on a parsed authorship taxonomy.

Caveat: 'no direct signal' does not mean 'no effect.' Content written by someone with genuine first-hand experience tends to contain specific, falsifiable detail that correlates with engagement and links — which are measured.

What we still don't know: whether any production system can reliably distinguish authentic experience from well-simulated experience in text alone. That remains an open question, and it is the central vulnerability of the whole framework.