Why Racket? Why Lisp?
I sure hope the giant, hideous, obtrusive diamonds inserted into the text to denote a hyperlink doesn't catch on as a trend.  It's a great way to break the flow of the text and irritate your readers.<p>As for the idea of Lisps, well, it sure seems neat.  But I've literally never run across a situation where I needed my code to edit itself.  I've never run across a situation where the lack of an everything-is-an-expression-is-a-list feature prevented me from doing what I wanted to do.<p>So I just don't really feel the need to get repetitive strain injuries in my pinky from reaching for the parentheses all the time.