The fact that we can communicate with computers using just natural language, and can query data, use powerful and complex tools just by describing what we want is an incredible breakthrough, and that's a very conservative use of the technology.
Smartphones changed day to day human life more profoundly than anything since the steam engine.
I've never experienced the massively life changing effects of having a smartphone, and (thankfully) none of my friends seem to be those people who are always looking at their phones.