You will learn four important things. The first one is how to implement games using gym and how to play games for relaxation and having fun. The second one is that you will learn how to preprocess data in reinforcement learning tasks such as in computer games. For practical machine learning applications, you will spend a great deal of time understanding and refining data, which affects the performance of an AI system a lot. The third one is the deep Q-learning algorithm.

It's way easier than you would think. Much of the content below is based on the Intro to Deep Learning with PyTorch course by Facebook AI. If you want to learn more, take the course, or just take a look here. Below is a graph that determines whether or not a student will be accepted into a university. Two pieces of data have been used: grades and tests each on a scale of 0–10.