I wasn't aware of lparallel and cl-cuda, thank you for pointing those out! The only threading I knew of was the implementation-specific kind, which makes for so

I wasn't aware of lparallel and cl-cuda, thank you for pointing those out! The only threading I knew of was the implementation-specific kind, which makes for some portability headaches. (Especially as I personally use CLISP instead of the more common SBCL.) Yes, the standardized definition is a Good Thing. What I meant by "interpreter interoperability" (I probably should have said implementation compatibility) are things like processing commandline arguments, which are not defined in the standard and vary wildly between operations. (Is there a library for that too? I haven't come across any yet, but that might just be me.)