Advertisement Even as bitcoin soars in price and enjoys a wider demand as an asset, Australian investors and analysts are divided over its longer-term implications for cryptocurrency on the world. Sydney-based venture capitalist Mark Carnegie says that although bitcoin is flawed, cryptocurrency points to new possibilities for global finance that Australian policymakers ignore at their peril. âChina understands that this is their weapon to replace the US dollar as the worldâs reserve currency,â says Carnegie, of M.H Carnegie & Co. âAnd Australia is ignoring the whole issue.â No fan of bitcoin: Chinaâs central bank, the Peopleâs Bank of China.