Tom Brown Jr. talks about something called 'dead zones'. These are the areas where our eyes may not look, for example taking in a mountain vista we will miss things in the foreground. Basically the idea is if you can identify the dead zones, you can hide in them while in plain sight.
Mr Habber, if you weren't so waaaaayyy off the mark with what you just wrote where i'm concerned, i'd reply with a decent retort..
But you are, so i won't, i won't waste my time on you because i can see clearly that with you, it really wouldn't be worth it..