Walmart just had its Q1 earnings call, and CEO John Furner wants you to know that the company is "becoming AI-native." Sparky, Walmart's shopping agent, is apparently driving higher order values, quadrupling unit sales through the bot, and generally ushering in a new era of AI-powered retail. Great! Except the metrics they shared to support all of this are, to put it charitably, not very convincing. I want to be clear upfront: I'm going off what was reported in this article.