The key difference to look for is to see if this 'multiverse' is a theory of how this VR of PMR, or perhaps all PMR type VRs, are created. If the reality 'from which' they are created, where the big computer and its 'operator/management' resides is not also described, then its comparison fails with MBT
describes the reality where we exist when we incarnate, PMR as we call it, and also reality where we exist continuously as well which we call NPMR. Tom Campbell then further extends his Model of Reality to explain where these two types of VRs are created and how. And going still further back into the nature of Reality, how The One Consciousness, the LCS, developed from the Void as the home of The Big Computer which produces all of the subordinate VRs.
Any model of how the VRs of the type where we incarnate, PMRs as we call them, are explained whether as a multiverse or a fractal universe or what ever the concept of physics by which they explain this VR and does not go still deeper to explain how the VR in which we live in originated from nothing, it is deficient compared to MBT
. Go to Tom Campbell's Wiki to read his Model of all of Reality. https://wiki.my-big-toe.com/index.php?t ... _Link_Page