Great question. In some ways. We always get “big” with new paradigms and then they grown smaller till they “disappear”. For voice as a user interface to a computer system to gain utility it had to get the entire iPhone stack to grow until the apps and then the phone “disappears”.
Wonderful question. There are quite a few. Many are not fully disclosed, because they use technologies that are not “available” yet. When you track the ones that are, there is an Ahh Haa moment. You realize we move away from us doing the work, to work getting done—for you.