[takikawa]

The title is misleading since the blog author admits to not having tried Racket recently. IMHO, Racket fixes the author's key complaint about documentation by having a Guide (separate from Reference) with many examples: http://docs.racket-lang.org/guide/index.html

Since Racket isn't Scheme, it also comes with more data structures built-in and there's on-going work to better support numerical computation.

[rohshall]

Yes, Racket is probably one of the best languages out there. And the documentation for the core language and standard library is excellent (Racket guide and Racket reference). But I think the author is talking about the PlanetT.