From the perspective of a non-developer I thought this was pretty good. I could have done with a bit more information and references, and less arguments with "

From the perspective of a non-developer I thought this was pretty good. I could have done with a bit more information and references, and less arguments with "past-me" though. HN has an almost hostile reaction to anyone who says using machine learning in practice is easy. Maybe it is just a question of different definitions. Of course developing new algorithms and coding everything from scratch is difficult but using machine learning for predictive analytics does not have to be that hard and can create a massive amount of business value.