“What Am I — Qualia, Brahman, Neurons, or just Nothing?”
This node analyzes the measurement problem in quantum mechanics. It explores the Von Neumann-Wigner interpretation and the debate over whether wave function collapse requires a conscious mind.
A quantum system is described by a wave function representing a superposition of possibilities. When a measurement occurs, the wave function collapses into a single state. The definition of 'measurement' remains a central debate in physics.
Physicists John von Neumann and Eugene Wigner argued that all physical measurement instruments are themselves made of atoms and must exist in superposition. The chain of superposition is only collapsed when the measurement registers in the consciousness of a human observer.
The standard physical counterargument is decoherence. It states that interaction with the surrounding environment (air molecules, light) causes a quantum system to lose its coherence and appear collapsed, without needing a conscious observer.
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