I feel like this whole thread could stand to have people more clearly define the way they are using the term. I don't know of any "immutable" system that litera

I feel like this whole thread could stand to have people more clearly define the way they are using the term. I don't know of any "immutable" system that literally never changes or something. If Erlang is "mutable" in t sense, what system isn't? I've seen such ideas tossed around, but I don't think I've ever seen an implementation.