(An excerpt from Paul’s upcoming book, The Quantum Revelation: A Modern-Day Spiritual Treasure)
The appearance of a rainbow is made up of the interaction of raindrops, sunlight and our consciousness. By itself—from its own side—a rainbow has no existence in our universe prior to being observed. This is to say that there is no intrinsic, independent, objective rainbow that exists separate from the observing consciousness. Being a function of our observation, if no one were there observing it, there would be no rainbow. There is no physical rainbow existing somewhere out there in space; the rainbow is only to be found within—and not separate from—the very mind that is observing it. The highest Buddhist teachings—and now quantum physics—says that our physical universe is similar in this regard to a rainbow.
Just like a rainbow can’t be said to exist until the moment that it is observed, quantum entities can’t be said to exist until the moment of observation; the act of observation is truly creative. The quantum entities that make up what seems to be solid matter (let’s use, for example, a tree) are no more like the thing we call a tree than the raindrops are like the thing we call a rainbow. Just as a rainbow is the outcome between the raindrops and our consciousness, the tree is the result of the interaction between the quantum entities that compose it and ourselves. This is to say that in the case of the seemingly solid, three-dimensional world, there is one necessary ingredient: an observing consciousness. This isn’t some New Agey gobbledygook, but simply the logical outcome of following the insights of what quantum physics is revealing to us about the nature of the universe we live in.
If more than one person is seeing a rainbow, there is an unexamined assumption that this means that the rainbow is “really there,” i.e., that there is an objectively existing rainbow that they are all seeing. If a number of observers are seeing what seems to be one and the same rainbow, however, it is not accurate to say they are seeing the same rainbow. A rainbow appears in a different place for each observer—in fact, when any one of us sees a rainbow, each of our eyes sees a slightly different rainbow. Its position is context-dependent, rather than being innate; if we move, it moves. In a very real sense, there are as many rainbows as there are observers; each observer is seeing their own private rainbow. It is as if there is an infinite superposition of rainbows existing in a state of potentiality, each one inhabiting a virtual world until the moment it is observed.
Similar to how there is not one “objective” rainbow that exists as an “object-per-se,” quantum physics has discovered that there is no invariant way the universe “really is.” To quote Philip K. Dick, “for every person there is a different universe which is the result of a mutual participation between him and the macrocosm, a field that is a syzygy between them.” There is no single reality that all observers share. Wheeler writes in his notebook, “Idea, surely not new, that there is not ‘one world’ but as many worlds as observers.”
Dick continues, “If reality differs from person to person, can we speak of reality singular, or shouldn’t we really be talking about plural realities? And if there are plural realities, are some more true (more real) than others? What about the world of a schizophrenic?” Are some of us more “in touch” with reality than others? It is easy to presume that the differences between people’s worlds is caused entirely by the subjectivity of the various human viewpoints, i.e., that people are just interpreting the one, objectively existing world differently. Quantum physics suggests that our situation might, however, be one of plural realities superimposed onto one another—akin to the potentiality of the wavefunction—like so many film transparencies. At any given moment, based on our observation, one of these transparencies takes on substantial form and appears, to our mind, to be the real and therefore only existing reality, while the other potential universes disappear as if they never existed.