Re: PHYS; Quantum Teleportation

Michael Lorrey (
Sun, 14 Dec 1997 04:40:01 -0500

Wayne Hayes wrote:
> Anders Sandberg <> wrote:
> >>> An MRI scanner will change the quantum state of your brain and thus it will
> >>> change you, so will reading this post or being bitten by a mosquito.
> >>
> >> Dr. Chao is this correct?
> >Yes, it is correct. A MRI scan makes most of your hydrogen atom nuclei
> >align their spins, and then electromagnetic fields twist them around
> >so that they emit telltale radiation. Very elegant, and quite dramatic
> >on the quantum level.
> Right. So, to be clear, the first line of the first quote is correct,
> but the second is *not*. An MRI makes dramatic changes on the quantum
> level, but absolutely *no* detectable change in the personality,
> memory, etc., of the individual. Thus, the spin state of the hydrogen
> atoms in your brain is absolutely irrelevant to the health and welfare
> of your mind, and thus, need not be duplicated by a teleportation
> device.

Only if you beleive that the "quantum mind" stuff is true. The spin
states of nuclei are all random normally.

			Michael Lorrey
------------------------------------------------------------	Inventor of the Lorrey Drive
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