I agree that the time of smartphone innovation is gone, and I'd argue it's been gone since years, but still breathing the last breaths.

On the other hand, I do not think AI is the next big thing. It is a good candidate to be so, but there should exist much better guesses we can make. You should have a product, not simply a way of doing something or a technology. You need to sell a product, so pure AI won't do anything.

But even if it doesn't do much by itself, it should play a big role in the coming S curve (as the article names it.)

Good article!