Coming soon, a UPI moment in healthcare? The People’s Bank of China didn’t respond to questions about whether the Zhengzhou disaster would have an impact on its digital-currency plans; nor did Alipay and WeChat, or cellular operator China Mobile Ltd. Government officials in China described the floods as a once-in-a-century disaster, while others saw them as a harbinger of climate change. Many nations, including the U.S., are watching Beijing’s rollout for indications of whether it makes sense for them to also digitize their currencies. Beijing is typically cautious with financial innovations and so far hasn’t committed to a timetable for...