GHC was released in 1992 and has a large amount of language options it supports (over 100 now, I think) https://downloads.haskell.org/~ghc/latest/docs/html/user

GHC was released in 1992 and has a large amount of language options it supports (over 100 now, I think) https://downloads.haskell.org/~ghc/latest/docs/html/users_guide/glasgow_exts.html#language-options https://downloads.haskell.org/~ghc/latest/docs/html/users_gu... I don't think the issue here is due to static typing, but due to the age and complexity of the language implementation. It's not trivial to figure out how all of those extensions interact with each other and your changes.