The advance of artificial intelligence is super exciting and also somewhat scary. More and more, AI is taking over defining how we interact with computers and the people connected with us. One of the most used types of AI is the recommender system. Recommender systems are everywhere. Working behind the scenes, they recommend products, music and films. They make algorithmic timelines on social platforms and decide what ads we see. Chances are, you used one to discover this post. Or was a recommender using you?