Context
Google deployed BERT to better understand the intent and context of natural-language search queries.
What changed
Search systems became materially better at interpreting conversational wording and relationships between words.
Why it matters
Semantic clarity and contextual relevance became more important than literal keyword matching alone.
Visibility OS interpretation
BERT is an important predecessor to the language-understanding layer used in modern AI-mediated discovery.
What remains uncertain
No event-specific uncertainty note is recorded yet. This record may change as new evidence is reviewed.