BERT (Bidirectional Encoder Representations from Transformers) is natural language processing (NLP) algorithm that will help Google to understand natural languages like humans. It will help in processing with substantial accuracy of NLP tasks like question answering and sentiment analysis.
10% of all queries have been impacted by this update. An Update to Google’s Search Ranking System.
With this Google search will better understand the context of the words in the queries and you can search in natural way and will get more relevant results. RankBrain was Google’s first artificial intelligence algorithm.
For SEO: Write content with context that solves the users problem in natural way.