Levels of Perspective: the discernment of various scales of perception

In the light of current events, I was reflecting that it may help to bring some clarity if we can make distinctions between the various scales of perspective. As I had spoken about previously,[i] different individuals can be physically close to one another yet be experiencing a staggeringly different view of reality. Rather than feel antagonism in this, we need to understand that there are levels, scales, of perspective in operation. For the sake of brevity (and clarity), I shall refer to these as the 2D, 3D, and the 4D perspectives.