Menu and typing commands are not either-or exclusive; you can have both. In a system like Archy there can be menus stored as plain text - given that it's trivia

Menu and typing commands are not either-or exclusive; you can have both. In a system like Archy there can be menus stored as plain text - given that it's trivial to select text and invoke it as a command. It's just that menus don't require a separate subsystem or component, they're stored in the homogeneous system's data representation (and they can be user-editable, which modern GUIs don't allow - yet). I've known of Archy and The Humane Interface for about ten years, and it's funny how more and more interfaces are converging towards the interaction style defined by it (with some tweaks because of backwards compatibility and-or because some of the ideas in the book have been tested and improved since then).