Haskell is hard because it is a very powerful and high level language, with a sophisticated compiler (type checker for highly exotic types) and runtime (lazy ev

Haskell is hard because it is a very powerful and high level language, with a sophisticated compiler (type checker for highly exotic types) and runtime (lazy evaluation system, not merely a bytecode VM). Most popular languages aren't nearly as sophisticated. You can write sophisticated programs in them, but the languages aren't as sophisticated.