Big Tech’s AI Endgame Is Coming Into Focus

If Google has its way, there will be no search bars, no search terms, no searching (at least not by humans). The very tool that has defined the company—and perhaps the entire internet—for nearly three decades could soon be overtaken by a chatbot. Last month, at its annual software conference, Google launched “AI Mode,” the most drastic overhaul to its search engine in the company’s history.

The feature is different from the AI summaries that already show up in Google’s search…