If the server closure F, besides it's own messages can also receive a `{become, F}` message, then you can then keep changing the server to something new again and so on.
Completely unrelated, but I remember talking to Joe at one of the Erlang conferences. He was always excited about technology and always happy to chat with anyone. He was dismayed how Windows had gotten worse and less usable over the years, and how one day we won't be able to browse our own files on it until we sit and watch advertisements for a while to unlock them. Joe was nearly right! Sure enough, years later I hear there are ads in Windows 11 and you have to go out of your way to remove them. Not quite the same yet, but by Windows 13 I am sure we'll get there.
Completely unrelated, but I remember talking to Joe at one of the Erlang conferences. He was always excited about technology and always happy to chat with anyone. He was dismayed how Windows had gotten worse and less usable over the years, and how one day we won't be able to browse our own files on it until we sit and watch advertisements for a while to unlock them. Joe was nearly right! Sure enough, years later I hear there are ads in Windows 11 and you have to go out of your way to remove them. Not quite the same yet, but by Windows 13 I am sure we'll get there.