On September 1st, the author and statistician Nate Silver wrote a post on X diagnosing a new condition: “Blueskyism,” so named for the decentralized social network that has emerged as a competitor to what used to be Twitter. According to Silver, Blueskyism embodies a newfangled ideology comprising “all the characteristics that make progressivism unappealing to normal people”—the same qualities, Silver argues, that prevent Democrats from recouping electoral favor. As with any good social-media bi...