Well, of course, sandboxing is opt-in, and there are still lots of programs out there that don't use them. I'm not sure Emacs or vim, as an example, would ever

Well, of course, sandboxing is opt-in, and there are still lots of programs out there that don't use them. I'm not sure Emacs or vim, as an example, would ever be able to be sandboxed from the filesystem.