They added arenas to SBCL recently. SBCL has a moving GC, and the Common Lisp spec was finalized in the 1990s. Okay, this is just Lisp being Lisp, but it's sti

They added arenas to SBCL recently. SBCL has a moving GC, and the Common Lisp spec was finalized in the 1990s. Okay, this is just Lisp being Lisp, but it's still an example...