At 10:31 PM 6/28/2005, Stephen Paul King wrote:
RM: I assume this is not associated with Feynman's "all possible histories"
Are you familiar with any of the experiments that have been performed
regarding "quantum counterfactuals" or "null measurements"? It turns out
that the fact that some particular measure *was not made* counts just as
much, and thus affects the results of a measurement, of an actual
measurement that was made. Thus information of any occurrence or
non-occurrence of a measure of a QM system, coded in an OM, will make a
difference that can not be hand waved away.
This is why I am introducing the notion of a witness.