In this very article, which is pretty light on details, one of the few facts presented is that you can disable GC.
A couple of bonus facts for you:
- they've got an effects tracking system where you can have the compiler track (and whistleblow!) which functions are pure or not
- their multi-phase compiler allows you to read in source code at build time (from files or external programs!)
- their macro system is typesafe as it operates at the AST level
- the guy who created it will always tell you how he feels
- again with their macro system... there are FP libs, pattern matching libs, and OO libs that can "literally" transform the language to fit your preference
- and one more just for you: they don't support tail call optimization (ducks)
What does this mean?