My boss implemented something like this in the algorithm at Netflix. He called them “Search Backs”. Idea is if someone searches X, gets bad results than searches Y and watches a movie over large enough data it implies that X and Y are related.
For instance search “reed hastings favorite movies” no movies come up, then... See more
A few years ago I was worried about the risk of our country moving too far right. That worry was ill-founded. The main risk America actually faces is moving too far left, and we are moving there quickly.