Sugarite wrote:

Reversing cardioid signals is hardly experimentation. Two card's can be
trusted as a 100% match when they produce no perceivable signal when one is
inverted against the other. That catches aspects that aren't even
understood, much less measureable. That is a far more reliable test than
any that can be applied to a fig-8, except if you had a matched pair of fig
8's that stay matched if you turn one around, something I've never heard of
happening. If you reverse one or both of the fig-8's in Blumlein format
you'll get different imaging every time. The dependence on a balanced fig-8
in MS format is equally severe.

Since there is no way in the presently known universe to put two objects
in the same place at the same time, how can wavefronts that arrive at
different times null? Is this a fantasy test?

--
ha