> Racket, arguably the most popular Scheme implementation
Umm, NO. Racket isnt a "Scheme implementation". Racket was a Scheme as long as they called themselves MzScheme. Then they decided that they changed too much that a complete name change was justified in order to not confuse users.
Racket isnt a "Scheme implementation" for the same reason Scheme isnt a "Lisp implementation".
From http://racket-lang.org/new-name.html -- "Racket is a Scheme". The name change was about very different things than "basic scheme routines", and it would be hard to find any basic scheme implementation without any.
Umm, NO. Racket isnt a "Scheme implementation". Racket was a Scheme as long as they called themselves MzScheme. Then they decided that they changed too much that a complete name change was justified in order to not confuse users.
Racket isnt a "Scheme implementation" for the same reason Scheme isnt a "Lisp implementation".