Both. It allowed/forced me to explicitly handle edge cases I wasn’t thinking about. That means the error doesn’t happen at run time, but at compile time (or while writing!) so technically speaking the errors didn’t go away, they moved to in my face rather than “maybe in the future.”

Most of the time the remedy was to explicitly catch whatever happened and nicely explain what happened, vs looking at empty production logs because logging is turned down.

It’s certainly a preference, but for me, I’d rather argue with the compiler all day long and push a bulletproof release than quickly ship something I thought was good and be embarrassed.

Anecdotally I converted a python app to rust and suddenly had no more runtime errors. It’s utter bliss.