"During the decade long commodities bull market, there was a conventional wisdom saying: buy whatever China is buying, or something to that effect. And indeed the market seemed to have moved in accordance with that rule, for a decade.
When it comes to gold, that conventional wisdom rule seems to have been broken, or has it?"
Well, if Chinese demand ADDS to global demand at a time when supply is caught by surprise then the rule makes sense.
However if Chinese additional demand comes at a time when demand is falling elsewhere and previously accumulated stock piles are diminishing and mining output still strong then the rule does not apply.