ref have reference semantics, meaning 2 refs are only equal if their reference/pointer are equal.
2 refs having the same content do not mean they are equal. In short `==` does what you want, no need to cast to a pointer. This is one of the main reason to use reference semantics after all. I.e. 2 persons having 2 arms and 2 legs do not mean they are the same person or 2 memory locations having the same size and all zeros do not mean they are the same.
