Non-Observer-Dependent Interpretation of Quantum Mechanics

Summary:

Objective Probabilistic Realism (OPR) is a realist interpretation of quantum mechanics that posits the Universe evolves non-deterministically according to the probabilistic, yet orderly and causal, structure of the wave function, as governed by the Schrödinger equation. In this view, quantum systems, such as the superposition in Schrödinger’s cat, produce definite outcomes (e.g., the cat is either alive or dead) in objective reality, independent of observation or human measurement.

The probabilities reflect the intrinsic non-determinism of nature, where a single initial condition can lead to multiple possible effects, without implying randomness or incomplete knowledge. Unlike the Copenhagen interpretation, OPR rejects observer-dependent collapse, viewing measurement as merely revealing pre-existing outcomes without altering the system’s dynamics. It avoids hidden variables (as in Bohmian mechanics) and the ontological multiplicity of Many Worlds, maintaining that quantum mechanics is a complete description of reality.

By asserting that definite outcomes occur objectively, as evidenced by pre-human events like the Big Bang or plate tectonics, OPR reconciles the probabilistic predictions of quantum theory with a realist ontology, offering a philosophically consistent framework that aligns with empirical data and the causal evolution of the wave function.