is not only a chinese custum...

there are these theories since the ancient gnosticism...(that came to the east... is not something belong western... Rudolf Steiner studied all the question..  )

all these exoteric practice (moon rituals) and religions was mixed with scientific eugenethic theories, social engeneering studies...expecially after malthus and darwin... (malthus, darwin , club of rome)...

and montains of money for experimenting it in the world...

(all these things.. they usually don't try it at home... they go in other countries with montain of money... 

take Chile of Pinochet... Chile was a creature of the amercian chicago boys schoolars and nobel prize milton friedman... it was the first experiment of shock econony you see now in all the world.... banker can do now things was punished with the instant gallow only 30 years ago... first regan then clinton destroied the glass steagal act not allowed banker to put the world again in the 1929 condition.. )