Quoted from T6049:
I'd imagine that U2 and U2 tyrannus should work like other objects, and embed references to the URLs. When clicked, these references would take you to /U2 (*not* the link destination).
However, it seems useful to also provide a mechanism for directly embedding a Phurl link, maybe with this syntax:
This seems fairly easy to type while remaining unlikely to collide with text in normal use. This would render an alternate form of U2 which took you directly to the link destination when clicked.
For links with aliases, using the alias would also work: above, Bob could type ((restart)).