I don't know why people say Haskell is difficult. It's certainly different, but once you know Haskell (which is perhaps the difficult step) you'll find that you

I don't know why people say Haskell is difficult. It's certainly different, but once you know Haskell (which is perhaps the difficult step) you'll find that you can, and that you are even encouraged to, hand over much of your responsibility to think to the type checker. Haskell makes you lazy, in a good way.