It's not ridiculous - well, it is a bit - but it's still wildly impractical because the tech to make it happen just doesn't exist yet. AR is where CRTs were in

It's not ridiculous - well, it is a bit - but it's still wildly impractical because the tech to make it happen just doesn't exist yet. AR is where CRTs were in the 1980s. It wasn't hard to imagine a "futuristic" giant flat panel display. But it was literally impossible to build one, at any price, with the tech of the day. The kind of non-intrusive AR you're talking about it is maybe 15-20 years away. In the meantime we get dorky visors and - coming very soon - slightly less dorky but still not very elegant glasses.