alt Hacker Newsyour argument assumes that “fully integrated and in-my-face” == best form factor.
Maybe for certain tasks or certain people. But in general i disagree with that take. The fact that i can stow away my phone into my pocket, not creep out bystanders (they know my camera isn’t recording them, etc), and forget about my phone for a while is a FEATURE.
But a watch isn't in your face. That's the other advantage over glasses (in addition to the "it's not really possible" part).