The most recent smartphones have certain characteristics much better than in previous models, thus improving the user experience. In this sense, some years ago people did not imagine that they could search the Internet using a voice recognition system, this being one of the characteristics of the previously mentioned devices.
The number of people who search by voice is increasing every day, so a system was necessary to ensure that these searches were carried out efficiently. What is the reason for this? Well, it can be said that voice searches are usually much more diverse and personalized, so RankBrain is needed.
This system is essential in this type of searches, since the algorithm is designed for unique searches in Google, thus making them easier to understand for the main algorithm of the search engine.