I agree with this. I may not be able to have a non-working prototype that crashes on its first input as quickly with Rust as with Python, but I can create a wo

I agree with this. I may not be able to have a non-working prototype that crashes on its first input as quickly with Rust as with Python, but I can create a working prototype more quickly, and that prototype will transform into production code far more quickly. Scale up a bit, and you end up with far fewer (often zero) subtle bugs when other people change other parts of the codebase, or when you do a significant refactor - some of these being the kinds of bugs that are difficult to test for. I would call that "more productive", personally.