So you get a safe refactor feature for free. So you don't get afraid of refactoring. So you do refactor. So you get used to that exercise. And eventually you re

So you get a safe refactor feature for free. So you don't get afraid of refactoring. So you do refactor. So you get used to that exercise. And eventually you refactor in your head before typing. Plus you get types hints for free, and safe auto completion too.