You can make an absolute internal link for any page (SEFURL of page named "Absolute Vodka" in this case) just like this:
Relative link example:
[relative-page|Everything is relative]
((Relative Page|Everything is relative))
With "absolute" I mean a link that starts at the outermost name space. What you describe, is called an "external" link in the documentation. I'm looking for how to make internal, absolute links.