span Corey deVos February 5, 2017 The number of holons on any given level. While “span” refers to the horizontal dimension of a holon, “depth” refers to its vertical dimension (i.e., the number of levels within a holon). See depth. Related Articles: From the Cambrian Explosion to the Human Explosion“The Diplomat” Seeks the Bigger PictureDepth & SpanTransforming Self, Society, and the Spaces Between UsThe Seven Deadly Sins of DEI (Diversity, Equity, and Inclusion)