If it's fair to say that the abstraction we're talking about is a semantic thing, rather than a syntactical thing, then I think we're in total agreement. Rust

If it's fair to say that the abstraction we're talking about is a semantic thing, rather than a syntactical thing, then I think we're in total agreement. Rust (as far as I know - I'm totally not an expert, nor a programming language person) makes handling the black-and-white cases really nice, but it would be nice if there were less friction for handling the in-between cases. I'm not sold on the solution requiring a 3-enum `Outcome` vs a 2-enum `Result`, but also feel that things could be better.