Human consciousness might be powered by quantum nuclear spins, and there is now a mathematical test to prove it.
Philosophers have debated the quantum brain for years, but this research provides a concrete experimental blueprint to settle the matter. The test looks for a specific violation of classical physics called a Leggett-Garg inequality within the brain's neural pathways. It focuses on how information flows through nuclear-spin memories that could survive the noisy environment of biological tissue. Proving this would mean your brain is essentially a biological quantum processor. This shifts the study of the mind from psychology into the realm of hard particle physics.
A Falsifiable Leggett--Garg Test of the Three-Layer Quantum Brain Hypothesis: Quantum Non-Demolition Probes and Brain--Reservoir Information Channels
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Abstract The three-layer quantum brain (3LQB) hypothesis proposes that biological tissue computes by exploiting nuclear-spin memories, radical-pair processors and spin-selective readouts. To convert this hypothesis from speculation to testable physics we (i)~derive a sharp falsifiable prediction--Leggett--Garg violation $K\!\ge\!1$ requires $\geff/\omega_{\mathrm{Larmor}}\le 0.5$, and (ii)~build a quantitative catalogue of probes able to confirm or refute it without disturbing the quantum inform