It took me a while to understand, but it's the whole point of the article: macros that can also do their own tokenizing and parsing. That enables syntax you can

It took me a while to understand, but it's the whole point of the article: macros that can also do their own tokenizing and parsing. That enables syntax you can't have with lisp macros (including unbalanced parens!) It's still unclear if it enables anything useful, but still a cool idea. (I have an interest in this space: http://github.com/akkartik/wart#readme http://github.com/akkartik/wart#readme)