Two letter acronyms are going to fail...
3D? Failed in the 50s, and failed again in the naughties.
VR? About to fail.
AI? Lots more fail before it gets any better. And by better, I mean developed for an actual use by someone who's not trying to cleverly feed me an advert on a chunk of plastic, sand, and metal that I paid for already.
When I can pick up my device, look through the camera lens and have it augment actual useful info, rather than every coffee shop in a 100 mile radius, THEN we might be getting close to something useful.
I've had Siri for about a year. I used it once and now just set my own appointments with the iCloud apps directly. When it can do more than just offer simple suggestions, or unhelpful ones like "would you like me to search the web for that?" it would be ready for everyday use. I can't imagine what the lesser two voicebots are talking about, nor do I want to know. They are all lacking.