what would be an appropriate response based on previous interactions they've seen on YouTube so they would have seen something similar to this on YouTube and had somebody some people are applying these kinds of comments and that's how they learn and that's how they come up with the responses and the last example that I'm going to show to do with ytube is recommender systems and that's really what I work in is recommender systems and you'll know this from things like Netflix or Amazon but as well YouTube does recommend you videos and you