American Dr Stuart Hameroff and British physicist Sir Roger Penrose developed a quantum theory of consciousness asserting that our souls are contained inside structures called microtubules which live within our brain cells.
Their idea stems from the notion of the brain as a biological computer, “with 100 billion neurons and their axonal firings and synaptic connections acting as information networks”.
They argue that our experience of consciousness is the result of quantum gravity effects inside these microtubules – a process they call orchestrated objective reduction (Orch-OR).
In a near-death experience the microtubules lose their quantum state but the information within them is not destroyed. Or in layman’s terms, the soul does not die but returns to the universe.
“[…]souls are contained inside structures called microtubules which live within our brain cells.” Is it just me or does that sound similar to how George Lucas tried to explain the Force and midichlorians in The Phantom Menace?
Regardless, it’s speculative at best, and should be given no further weight than that.
Addition: He’s been at this for a while. (Tip: @lippard)