alt Hacker NewsIts not necessarily meant to do anything on its own. The text there is the same cause/effect syntax, just with slightly different delimiters. If you were to include the fact it needs to execute for the rule to work on after the code, like: "|| - Welcome to Nova! -", then the rule would execute.
OH! Ok that makes more sense. `:` from the tutorial is `-` or `~`, because it's the first char after the pipe.
I do lose track after that though, in my brain, It looks like the entire second part after the second pipe character should be just one long fact assigned to the stack between tildes, but I think it's adding each one of the bullet-prefixed lines to it.