Probe vs. Probed

[mark_horn@sbcglobal.net]

02-MAY-2005

Quick question:

In Geons, Black Holes and Quantum Foam, J. A. Wheeler (with Ken Ford)
points out that it is the distinction between the probe and the probed
that is central to the "elemental quantum act of observation;" that we
are always dealing with an "amplification from the quantum thing
observed to the classical thing doing the observing."

Is there any circumstance in which the distinction between probe and
probed vanishes? Or where the amplification can be a consequence of
idempotency?

Thanks,

mark jonathan horn