With respect, I don't wish to get involved in speculative aspects of "unity". All I would point out is that such a concept tends to rule out possibilities such that our "universe" could be merely an experiment in some petri dish of an alien life-form. In the mathematics of systems theory, an infinite regress of nested hierarchies is certainly viable. "Unity" forecloses on such mathematics and is therefore a psychologically functional and perhaps a palliative assumption about "reality".