The Multiverse: A Continuum of Universes

The proportion of each type of universe changes with time under quantum mechanical laws of motion. The proportion of universes having a given property also changes, and it changes continuously. Figure 9.4 shows a multiverse view of such a change from zero to one. David: Although the diagram makes it seem that there is at each instant, a particular universe that has just changed fromzero to one, because it has just crossed the boundary, that's not really so.