> Imagine instead that each program controls a special area under /proc/(pid)/ which behave like tmpfs to that program: named interfaces are subdirectories, mes

> Imagine instead that each program controls a special area under /proc/(pid)/ which behave like tmpfs to that program: named interfaces are subdirectories, messages are files. That's API. Users will depend on it. So now you either have to freeze your code or break users flows.