If you're wrong, you always have to check it for none, right? Which is it? Yes, we know you aotha defensive programming of checking is none on every single variable we create and every function and vocation. That woull just, it wouldn't be fun. But your alternative, if you don't have tha tooling, is, all right, does this function etern none? Let me go looking at source code. Oh, it calls five other functions. Let me go look at their source oh, this all something to the data bates. Is that a nolable feel i and any time you're making someone trawl through your code base