“It seems to me that we must make a distinction between what is "objective" and what is "measurable" in discussing the question of physical reality, according to quantum mechanics. The state-vector of a system is, indeed, not measurable , in the sense that one cannot ascertain, by experiments performed on the system, precisely (up to proportionality) what the state is; but the state-vector does seem to be (again up to proportionality) a completely objective property of the system, being completely characterized by the results it must give to experiments that one might perform.” GivingDoeStatesRealitySeemsMightResultsPropertyExperimentsObjectivesDistinctionQuantumMechanicDiscussingQuantum MechanicsVectorsProportionality Author:Roger Penrose
“It is hard to see how one could begin to develop a quantum-theoretical description of brain action when one might well have to regard the brain as "observing itself" all the time!” WellsHardMightActionBrainRegardDescriptionQuantumObservingTheoretical Book:The Emperor's New Mind: Concerning Computers, Minds, and the Laws of Physics Source: The Emperor's New Mind: Concerning Computers, Minds, and the Laws of Physics
“Quantum mechanics makes absolutely no sense.” PhysicsQuantumMechanicQuantum Mechanics Author:Roger Penrose
