This is superficially true but I think ignores how usable sam is. The rationalized command language, the fact that you can see what you're doing, unlimited und

This is superficially true but I think ignores how usable sam is. The rationalized command language, the fact that you can see what you're doing, unlimited undo even across files (even across file I/O), and the ability to go to the file in question and just type make it a much more satisfying experience to do large amounts of development with than ed is.