I find Rust to be about as productive as Scala (which I find to be generally more productive than Java). Both are generally functional, with a powerful type sys

I find Rust to be about as productive as Scala (which I find to be generally more productive than Java). Both are generally functional, with a powerful type system, with a lot of flexibility in the level of abstraction, with an expansive preexisting ecosystem you could shim in (C or JVM). However, I don't think Rust is a more productive general programming language than Ruby/Python. I think Rust is more productive when solving systems-level concerns, but most problems aren't systems problems. Crystal is also looking to be a nice compromise for a productive, C/C++ level performance language (if the ecosystem catches up).