“Seth material” search engine (Jane Roberts)

2. For those who are interested: As soon as Seth mentioned the “psychological activity” of atoms and molecules, I was intuitively and strongly aware of connections between his statement and at least two principles of modern physics. Yet I hesitated. “I know my feelings are right,” I told Jane, “but how do I explain them in a few words and make any sense?” I was also constrained by the limits of my own knowledge. Especially, though, I sensed relationships between Seth’s idea on the one hand, and both the uncertainty principle of quantum mechanics and the principle of complementarity on the other.

The complementarity principle (stated by Bohr in 1928) resolves the seeming paradox posed by contradictory experiments that show how light, for example, can be regarded as consisting of either waves or particles. Both experiments and conclusions are right — and mutually exclusive; whichever result is obtained is due to the nature of the particular experiment.