Of course there’s lots of ways a compiled program could still be incorrect. But in my experience (having spent years with both languages) the practical per-line

Of course there’s lots of ways a compiled program could still be incorrect. But in my experience (having spent years with both languages) the practical per-line error rate of rust code I write is many times lower than my per-line error rate in javascript. (And typescript is somewhere in the middle for me). Yes, you still need tests. But testing is never perfect. Bugs still slip through. I like not needing to be as paranoid in rust as I am in other languages.