The Defense of Copying Is a Tool

A defenseof copying is a tool that works well. If you're trying to maintain an i e discipline, ah, but you have to share data with a system that doesn't implement the same discipline or might not have any discipline. Maybe it will modify it, maybe it won't. So what are you going to do? You have to copy the whole thing and send it the copy. But you're going to give them a copy that can, they can do whatever they need to do with if they're going to add and remove stuff from the list,. That's fine. And you kind of lose the copy, the the pointer to the copy because you don't want to accidentally use