Imagine too, how such glasses would affect something like the proctoring of an exam. A cheater could use their glasses to read the questions (OCR) and give them the answers. It’s not practical to administer all tests within Faraday cages, and for some subjects, like math, you wouldn’t even need network access to facilitate the cheating: just the camera and HUD. ↩
[Up until this last paragraph of the footnote I was in agreement. I find the single use versions much more compelling than the walk about town version. Riding my bike with a HUD? Nice. Operating heavy machinery with an overlay of whatever’s important? Sure. Exam proctoring? Tests taken in a classroom? That’s not the future.]