We shall keep this brief.
On the whole we have little in the way of rebuttal to this line of inquiry. On the whole the theory appears to be sound. We do however have some more practical things to discuss regarding these parallel worlds and more specifically dormant world.
Professor Imagawa describes worlds as having various levels of potential energy, but that the whole system of worlds maintains a fixed energy level, thus posits a system of world annihilation without going into detail about this process. Again, we do not fully disagree with this notion. Indeed, we believe that the effects of this are noticable through what has been termed the gravitational effect of "dark matter". This leads us to our first quibble. The energy of the system, or at least the system as viewable from "current reality" is not fixed; it has increased quite dramatically since the "creation of the universe" and appears to still be increasing. Thus, we believe that while there is some annihilation effect it is not as described in the inquiry.
Based on the research we have undertaken we are of the belief that worlds are "annihilated" by degrees, first becoming detached then as they lose energy dropping through distict levels of causality until eventually they have completely faded from having any causal effect on reality. This can be termed annihilation. We don't believe there is a fixed point of view, however, so this effect is mutual from any observer in the "annihilated" world.
Speaking practically we are all familiar with this process, and this is the core of why we have decided to release this. The form it takes is entirely dependant on the causal nearness to the receiver.
Those works which are termed "fiction" (or even "non-fiction" for that matter) are, in reality, the result of the folding in of these parallel worlds in a form in-line with that world's potental causal energy. An unread text document having low potential energy, a story you hear about from a group of friends, much higher, something you experienced yesterday, higher yet. Feel free to consider the works which inhabit your present reality and their relative potential causal energies.
It is tempting to say that we all share a reality, which exists at a specific time, however consider the causal potential energy of some man camping in the woods of Germany to a child living in a village in Uruguay. They may as well not exist to each other. Indeed they /do not/ exist to each other, except in very abstracted form. Perhaps the man in Germany, is one of the gnats which was on a leaf of a tree they passed as they went about their daily routine. Unnoticed entirely, existant only in that the child /could/ have taken notice, if they chose to. Likewise, for the man in Germany.
We may be propmted to say more on the subject. However, we promised to keep this brief.