Did he just say what I think he said?

(warning: more tech humor)

Today in class I had a student that was asking me about XML and how it differs from HTML. He noticed that the tags in his XML didn't look anything like the HTML tags that he had used before. I explained that each XML page has a schema that defines what each tag means in an XML document. So XML is "Extensible" (what the X stands for) where HTML is more well defined. So, after his "ah-ha" moment he looked at the XML that he was looking over, chose a tag at random and clarified with me: "So <fu> might mean something totally different in a different context?!" Hm - yeah - it might.....