Great article on the fundamental problems associated with mutable state. The fundamental problem is that the idea of an object with a set of state that is the same to all observers violates pretty much the whole of information theory. It's not a problem that will ever be fixed with out changing the fundamental laws of the universe.
Ditch the mutable data and you can stop asking questions like what do we do if 10 becomes 10.5 before it becomes 11 and start storing values which never change.
Ditch the mutable data and you can stop asking questions like what do we do if 10 becomes 10.5 before it becomes 11 and start storing values which never change.