Hacker News Reader

That's the main use-case of Erlang/Elixir anyway: eliminate concurrency / parallelism bugs by copying data in the dangerous places, and make sure not to use locks but message passing instead. These two alone have eliminated most of the bugs I've wrote in other languages.

So, same experience. And it taught me to be a better Golang and Rust programmer, too.

This is why I think cross-training is so important and I should do more of it. Even something relatively minor, like doing the Advent of Code in elixir (nim last year) has made my python significantly easier to reason about. If you quit mutating state so much, you eliminate whole classes of bugs.

That's also how I tend to program after having read Joe Armstrong's dissertation "Making reliable distributed systems in the presence of sodware errors" and having programmned in Go for a few years.