> It’s probably not all of it When someone says they “know” some other language, it’s rarely all of it either. Take Python for example, I know some very good

> It’s probably not all of it When someone says they “know” some other language, it’s rarely all of it either. Take Python for example, I know some very good Python programmers who have been using the language for 20 years and yet wouldn’t claim they know every single feature, dunder method and standard library feature, but would absolutely say (rightly) that they know python.