Jimmy Wales wrote:
example, it'd be nice to have a way to do
<person>Thomas Jefferson</person> <nation>Germany</nation> <book>Gone With the Wind</book>
The way to do this markup, of course, is to write [[Thomas Jefferson]] and [[Gone With the Wind]].
These brackets mean "there is something special about this phrase", out of which the software can create a link pointing to a page that describes the subject of those words. For example, the page on Gone With the Wind could contain information that the phrase is a title (of a book and a movie) and thus should be rendered in italics. Just like the existence of the page results in a blue link rather than a red one, the italics could be derived from the contents of that page.
This is just an idea. I don't know if this is a good one.