On Thu, 29 Oct 1998 15:54:27 GMT, real_angora@my-dejanews.com wrote:

>Okay. I'm asking a question here that I should have known the answer to 20
>years ago.
>
>What is reciprocity? What happens when it fails? Why? What are the visual
>symptoms?

It keeps things stable, and when it fails, it is the end of the world
(red rolling clouds appear to indicate that it has happened...
;-), ;-), ;-)
(Sorry, just couldn't resist...! Tom Tcimpidis gave a good "real"
answer, below...)