Being able to inspect state is useful whenever you have state. Have you used a good debugger for Haskell? Does one exist? Do you write complicated software i

Being able to inspect state is useful whenever you have state. Have you used a good debugger for Haskell? Does one exist? Do you write complicated software in Haskell? I'll agree that Fibonacci and factorial programs don't need a debugger. And speaking of Haskell, do you think tools like QuickCheck and Hoogle are signs of language deficiencies?