dr. b,
i looked at that article the first day you posted it, but now i seem to have lost the link. moreover, i am not sure to which 'ctk exchange' category this thread belongs. although amy seems to have lost interest anyway, for future reference how can i quickly find the ctk exchange category to which a recent thread linked from the front page belongs?

thanks.

"One must still have chaos in oneself to be able to give birth to a
dancing star."
-- Friedrich Neitzsche