As someone who comes from a control background, I'm really happy to see this topic get coverage on Hacker News. Also, really glad to see ppl recognizing where control theory really shines (and where machine learning has its limitations)
I think they have very very high potential for simple dynamical (i.e. continuous time) systems. I enjoyed the presentation given at NeurIPS (2018) and look forward to seeing them applied to more real-life scenarios.