Type Inference in JavaScript

So, I'm the author and I'm aware there are smarter people than me working on things like this, but my question is mostly whether there's a threshold where things can be useful. As an honest question, in C++ I think there's a "stack limit" of like 15 deep for generic types to avoid the fact that the types are Turing complete. Is there something that can be done that addles the type system but makes useful things possible? I think that just because something isn't possible in the general case doesn't mean that the specific cases people are likely to encounter are impossible.