The future of finance is here. More U.S. retailers are accepting cryptocurrency as payment, albeit with the added step of converting the coins into cash first. For instance, Walmart shoppers must first sell their bitcoin or ethereum holdings within the Walmart OnePay mobile app. Then, they can pay through the app by scanning the bar code at checkout (or paying online, of course). Starbucks has accepted bitcoin and ethereum since 2021, using a similar process through the SPEDN mobile app, according to QZ. ...