[thyrsus]

I'd bet that, because the erlang family (erlang, elixir, erlang flavored lisp, ....) introduces important concepts when multiprocessing is involved, that they lead to a non-linear increases in productivity when multiprocessing is relevant to the problem. Further, multiprocessing may be more widely applicable than widely recognized, because the benefit has previously been lost to the former complexity and error-prone nature of multiprocessing.