Tech billionaire Elon Musk is once again using his massive social media megaphone to trumpet Chinese infrastructure to an international audience. On Monday, the CEO of SpaceX and Tesla reposted on X, which he owns, a nearly six-minute video of Chongqing East Railway Station in southwestern China, drawing millions of views within hours. It is unclear whether Musk is currently in Chongqing, China’s “mountain city” known for its spicy hotpot and one of the country’s most popular tourist...