[baldfat]

> arguably, is that it doesn't look like much else out there in common use, since it's a Scheme.

That is a beauty of Lisp especially Racket. Every thought is explicitly inside a bracket.

I am a self-taught programmer started with Assembly Z80, Pascal etc.. I mostly work with R now a days and I was struggling with R to get to the next level. I picked up a book and learned Racket and the convergence of R and Racket was totally unexpected. I missed all the Scheme influence in R and most R programmer in the past didn't use that part of the language. So as a learner them brackets are golden especially for learning concepts.