Just because operating systems all look the same from far enough nowadays doesn't mean no innovation is possible. As an example, we are slowly moving from the o

Just because operating systems all look the same from far enough nowadays doesn't mean no innovation is possible. As an example, we are slowly moving from the old file/directory organization of files to a less hierarchical system (tagging). Or maybe we could destroy the notion of files completely? The horse and carriage worked quite well, too.