A leading commodities expert has poured cold water on the ambitions of BRICS nations to supplant the US dollar as the global reserve currency, dismissing the notion of “de-dollarization” as a myth. What Happened: Jeffrey Christian, founder of CPM Group, a commodities research firm, has outlined a series of formidable challenges facing countries seeking to break free from the dollar’s dominance in a newsletter. Central to Christian’s argument is the unparalleled liquidity of the US dollar. He points out that the greenback is involved in 88% of daily currency transactions worldwide, according to…