every possible universe described by the universal wave function also exists as its own separate reality. Thus, this interpretation circumvents the need to explain what causes the collapse of the universal wave function to bring a specific universe or, indeed, our universe into existence. That’s because, again, the wave function never collapses. All possible universes described by the universal wave function exist, because the universal wave function represents the most fundamental description of reality that we have and every possibility that it describes must exist in some universe.
