I remember that a report to conference on 'real world' use of Haskell, there was a complaint that performance was impredictable due to Haskell's lazyness by default.

As a last note, to experience how incredibly lazy Haskell is, instead of using echo to enter the value Haskell, try typing the input characters one at a time, pressing Return after each character.

Why is Haskell considered such a great language, yet is not being used? This question was originally answered on Quora by David Jeske.

Unfortunately, [Dan] was unable to use Haskell by itself. He blames this on the cobwebs in the Haskell ecosystem, something that isn’t a problem for languages like Python that celebrate wide ...