Gradual typing means that an implicit "any" (unknown type) anywhere in your code base is not an error or even a warning. Even in critical code you thought was fully typed. Where you mistakenly introduce a type bug and due to some syntax or inference limits the type checker unexpectedly loses the plot and tells you confidently "no problems in this file!"
I get where they're coming from, but the endgame was a huge issue when I tried mypy - there was no way to actually guarantee that you were getting any protection from types. A way to assert "no graduality to this file, it's fully typed!" is critical, but gradual typing is not just about migrating but also about the crazy things you can do in dynamic languages and being terrified of false positives scaring away the people who didn't value static typing in the first place. Maybe calling it "soft" typing would be clearer.
I think gradual typing is an anti-pattern at this point.
I get where they're coming from, but the endgame was a huge issue when I tried mypy - there was no way to actually guarantee that you were getting any protection from types. A way to assert "no graduality to this file, it's fully typed!" is critical, but gradual typing is not just about migrating but also about the crazy things you can do in dynamic languages and being terrified of false positives scaring away the people who didn't value static typing in the first place. Maybe calling it "soft" typing would be clearer.
I think gradual typing is an anti-pattern at this point.