How about the horizon shell yin-yang'in but always beyond our x-ray sight? Say a definite thickness like an orange peel but until a frequency beyond cosmic rays is discovered, a finite outside skin with an adjustable lower epidermis? Still I truly have enjoyed both of your excellent insights, and as I have yet to read Our Living Multiverse by Fred Adams, I'm just about out of thoughts. May some observations on harmonic cosmic radiation diffusion patterns, as for what is beyond our orange? That would be a discovery indeed!