I have came to think that if the universe possesses a boundary, a condition seperating two realities then we may view the universe in a unique way. The boundary

of a universe is given with a wave function as

.

This is the approach that makes sense if the wave function is bound inside of the universe. In a similar approach then, the energy of the universe is defined by quantizing the Einstein equations

I speculate there is a unique similarity, that the wave function might be giving rise to zero energy and the universe is not what we encompass as a whole. My original equation, as small and simple as it is, stands true for particles in an enclosed system for that system to have walls, or a boundary.