Recode senior commerce editor Jason Del Rey talks with Kara Swisher about the ongoing rivalry between Amazon and Walmart, which was recently marked by big M&A deals: Amazonannounced plans to acquire Whole Foods for $13.7 billion and Walmart said it would acquire men's clothing brand Bonobos for more than $300 million. Del Rey explains both deals and argues that the Silicon Valley narrative of Amazon becoming the world's only store isn't as clear-cut as techies might think. He says Walmart's brick-and-mortar footprint makes a big difference, but so does its behind-the-scenes logistics operation and its access to a broad swath of consumers from all income brackets.