That’s a pretty shallow view of easier metaprogramming. Ruby allows for many different ways to metaprogram. You can open up any class at any time and create new methods on the class, you can even add a new method directly on an individual instance of a class without changing any other instantiated objects of the same class. I’m just scratching the surface of what’s available wrt metaprogramming in ruby. The ease of metaprogramming in ruby is specifically why rails was easy to write.