i guess that zone is what makes people unique in a way, or at least partially defines us. The way i see it life is analogue, not digital so there's an infinite number of possibilites between yes and no, just like there are points between two points on a line or numbers between any two numbers.
Which means (imo) its impossible to define and box it up , categorized and measure exactly in a spreadheet like , what was that word ... quadrillage :p

i think it's a venn-diagram with overlapping zones, maybe bubble universes are the same and in some parts they don't collide but overlap ...
i guess a question for after when its possible to measure this one by approximation :)