> Regardless of what the final form factor ends up being, there’s no doubt spending our lives hunched over staring at a piece of glass in our hand is suboptimal.

As opposed to what exactly? If the author really believes that a watch and glasses are preferred over a smartphone, I don't know what to say. Also, note that the author doesn't know what this new form factor will look like. In that case, what's the point in declaring that Apple and Amazon will miss the boat?

I think a much bigger threat to Apple is a smartphone with an AI driven operating system. But what do I know?