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To follow up on God is mind here is an excerpt from George Wald, a Noble Laureate discussing mind and matter.
It is primarily physicists who in recent times have expressed most clearly and forthrightly this pervasive relationship between mind and matter, and indeed at times the primacy of mind. Arthur Eddington in 1928 wrote, “the stuff of the world is mind‑stuff ... The mind‑stuff is not spread in space and time.... Recognizing that the physical world is entirely abstract and without ‘actuality’ apart from its linkage to consciousness, we restore consciousness to the fundamental position . . .”
Von Weizsacker in 1971 states as “a new and, I feel, intelligible interpretation of quantum theory” what he calls his “Identity Hypothesis: Consciousness and matter are different aspects of the same reality.”
I like most of all Wolfgang Pauli’s formulation, from 1952: “To us . . . the only acceptable point of view appears to be the one that recognizes both sides of reality -- the quantitative and the qualitative, the physical and the psychical -- as compatible with each other, and can embrace them simultaneously . . . It would be most satisfactory of all if physis and psyche (i.e., matter and mind) could be seen as complementary aspects of the same reality.”
What this kind of thought means essentially is that one has no more basis for considering the existence of matter without its complementary aspect of mind, than for asking that elementary particles not also be waves.
As for this seeming a strange viewpoint for a scientist -- at least until one gets used to it -- as in so many other instances, what is wanted is not so much an acceptable concept as an acceptable rhetoric. If I say, with Eddington, “the stuff of the world is mind‑stuff,” that has a metaphysical ring. But if I say that ultimate reality is expressed in the solutions of the equations of quantum mechanics, quantum electrodynamics, and quantum field theory -- that sounds like good, modern physics. Yet what are those equations, indeed what is mathematics, but mind‑stuff? -- virtually the ultimate in mind‑stuff and for that reason deeply mysterious.
George Wald: Life and Mind in the Universe