" Most modern physicists have accepted the fact that the role played by the conscious ideas of an observer in every microphysical experiment cannot be eliminated; but they have not concerned themselves with the possibility that the total psychological condition (both conscious and unconscious) of the observer might play a role as well. As Pauli points out, however, we have at least no a priori reasons for rejecting this possibility. But we must loot at this as a still unanswered and an unexplored problem. "

― C.G. Jung , Man and His Symbols