Any good argument that anyone can think of for a scenario where smart eyewear will not be as ubiquitous as smart phones eventually? I understand the privacy argument, but that is not going to be enough. The ability to think or blink in a certain way and capture anything you see is too powerful a tool, alongside the augmented reality that is coming.
The argument is that many people go through the hassle of contact lenses as to not have to wear things on their face.
The bigger problem is that most of reality is just not that interesting. We are already well passed the marginal utility of additional photos/video.
Augmented reality has been right around the corner for many years now. There is obviously all kinds of fundamental flaws with these ideas that those with vested interest pretend do not exist.