many many years ago i saw a nat geo "fighting documentary" where the guest (special forces something, ) had a eye tracker and a random person walk through a tes

many many years ago i saw a nat geo "fighting documentary" where the guest (special forces something, ) had a eye tracker and a random person walk through a test course. what they showed was the "special guest" was actively looking and investigating threats, checking surroundings and assessing everything. the random person was just "walking" without actually "looking" or "concentrating" on anything, . "guest" was doing "this is a car, ok, next, this looks like a guy, wait what is in his hand,... is that an alleyway? no light, could someone be hiding in the shadow" the random person's vision was like "lalalalaala.... end of test, what did i miss?" That was a quite a big thing for me. i always "look" at things now, when i am walking, driving, something. it definitely gets tiring after a while because of the sensory overload. Now, i cannot imagine what AR would do to that vision, would it be helpful, less helpful? i am not sure but it will be something to consider.