They're completely different languages. Common Lisp isn't Racket. Racket is "a Lisp", but it's not Common Lisp (or even Scheme, which it's much more closely bas

They're completely different languages. Common Lisp isn't Racket. Racket is "a Lisp", but it's not Common Lisp (or even Scheme, which it's much more closely based on). You're writing something like: If Java raw speed > TypeScript raw speed wouldn't most expert curly-bracers by default choose Java? Differences include all the differences different languages have: features (hygienic macros, continuations, conditions, CLOS, ...), libraries (standard or otherwise), tooling...