I didn't even mention VR and I am so beyond tired of it being brought up every time AR is.

I said AR because I meant AR.

It would take some serious overlay resolution to replace a monitor, which just doesn't exist right now (?). If the angular size of a pixel is too large, it's essentially like being nearsighted. A person with 20/20 vision can see detail down to the eye forming an angle of 5 arc minute (1 arc minute = 1/60 of a degree).