Its important to remember that human being is not an idea. Human Being is what it is and no idea can embody the whole of what it phenomonologically is. So our abstractions give us traction in creating our being, but they, by their very nature, can NEVER capture the reality of human being. SD is a convention, a construction, yes that appears to be pretty well grounded, but will never encompass everything about us. Conventions are windows on possibility, never meriting an attribution of final and complete understanding. We just will never KNOW what we are in a final sense. But we can get a handle on some stuff and SD is very artful in providing some handles.

I’ve introduced myself with a lot of verbiage here, so I will leave my comments about joint attention intersubjective event spaces for later. This is the space that within which we share SD levels with others, and within which our own SD levels are created by our cultural downloads. Mirrror neurons and our minds natural tendancy to imitate facilitate this downloading. Check out Tomasello, et al.

Be well - Tom C.