Reinforcement learning algorithms have been knocking on the door of industrial applications in recent years. Will they finally blow the door wide open in 2019? What are some of the biggest obstacles holding back reinforcement learning? And is there a ceiling we can put on where RL will take us in the future? We welcome 2019 on DataHack Radio with a stellar episode #15 featuring Xander Steenbrugge, as he navigates us through the wide-ranging and intricate world of reinforcement learning. And yes, those above questions have been very expertly handled in this episode.