Superposition & Decoherence

Superposition is the genuine state of unactualized possibility — not ignorance about a definite state, but the real absence of a definite state. Aristotle would call this dunamis (potency) as opposed to energeia (act). The unmanifest is not empty; it is too full to be any one thing yet.

Measurement — the so-called “observation” — collapses superposition into a single actualized state. Crucially, this does not require a conscious observer; any physical interaction that records which-path information will do it. The modern framework, called decoherence, says: once the information about a system's state becomes entangled with the rest of the environment, the superposition is effectively gone. The universe itself is constantly “observing” things at every scale.

The convergence with classical and Vedantic metaphysics is exact. Potency becomes act through actualization. The unmanifest becomes manifest through some agency of differentiation. Avyakta becomes vyakta. Quantum mechanics has, in its own vocabulary, recovered a doctrine the mystics already had.