My experience about any area I've specialized in is that for every one that is talked about publicly there are maybe ten things that are not being talked about.

This is particularly the case when the new technology is a particular competitive advantage.

One firm that I worked for developed a highly competitive product using a deep neural net (back when the Restricted Boltzmann Machine was a thing!) and the "deep learning" hype was just starting. They sent a marketing person to my office to interview me about what things we could say about the product that would make it sound impressive and I told him all about it, but his superiors didn't let him use the material because they didn't want competitors to know how it worked.