Relative to Ruby it's a lot better without sacrificing the rapid prototyping. If you need real correctness then Haskell and Rust are in a class of their own, b

Relative to Ruby it's a lot better without sacrificing the rapid prototyping. If you need real correctness then Haskell and Rust are in a class of their own, but they'll never be as fast for hacking (although admittedly Rust has a high ceiling). I think the magic of Elixir is the happy middle ground where you get more correctness than a multi-paradigm highly dynamic language like Ruby with minimal overhead, and then you strengthen the operational story with a deeply embedded crash-and-restart tooling from Erlang/OTP encouraging less statefulness and easier recovery by design across the board.