The Completeness of Quantum Mechanics and the Determinateness and Consistency of Intersubjective Experience: Wigner's Friend and Delayed Choice
arXiv Preprint Archive January 28, 2019 Michael Silberstein, W. M. Stuckey
Determinate and intersubjectively consistent experience of experimental outcomes is compatible with quantum mechanics without sacrificing free will, locality, or the completeness of the theory. A realist psi-epistemic account—treating the quantum state as knowledge rather than reality—yields a single world where all observers agree on definite outcomes. This approach eliminates the measurement problem and, combined with neutral monism, also resolves the hard problem of consciousness. The account requires no relative states, subjective collapse, or hybrid models.