The actual usefulness and potential of smart glasses, especially ones with cameras, is almost unfathomable.
I thought the first paragraph was leading to a decent point, but "unfathomable usefulness" is an almost rabid level of overstatement. There's some fathomable applications as an aid for blind people, but every other use case that's ever come up has ranged from "novelty" to "really fucking creepy" with the occasional "looks like a useful thing but didn't really solve an actual problem we had with the previous way of doing it".