I think it's really a pretty interesting idea. I do think when you come fromi these languages like c plus plus or java or something, there is something to be said for it. It won't catch every error, but it can catch more errors, and that's a good thing. The answeris just, python's gradual typeing. You just rit type as you need to. And i won't be prescriptive and say you need types everywhere. For there'se certain places where it makes a lot of sense, saving money and time.