Billionaires like Bill Gates, Elon Musk and Warren Buffett are already jockeying for control of the emerging bitcoin digital currency.
Starbucks, McDonald’s and Subway chains in China were named on the People’s Bank of China’s list of firms that will test the national digital currency.
Bitcoin is not just a digital currency, like the dollar or the yen or the euro. It’s also a payment system, like PayPal or the Visa...