A quiet update to WeChat's Mac application carries a larger philosophical weight: the browser, long the primary window through which humans have encountered the internet, is being folded inward — becoming infrastructure rather than interface. Tencent's move to embed browsing directly within WeChat reflects an industry-wide recognition that AI Agents, not human hands, are becoming the web's primary navigators. What once required a person to open, click, and read is being delegated to autonomous systems, and the tools that served human curiosity are being quietly repurposed to serve machine acti