I feel like programming languages that wants to be used in production have a novelty budget. Rust does a great job of managing this, for instance. Haskell is a

I feel like programming languages that wants to be used in production have a novelty budget. Rust does a great job of managing this, for instance. Haskell is an interesting case because it is a fairly simple language by default (hm type system) with laziness as big innovation. But it also lets you play with experimental features via language extensions. Some work out great, others like implicit nested data parallelism get axed eventually.