RE: [Haskell-cafe] I read somewhere that for 90% of a wide classof computing problems, you only need 10% of the source code in Haskell, that you would in an imperative language.

As one C++ expert I know is fond of telling me, "Haskell will only become popular when obscure mathematics becomes popular".

That might be true, but the calculus and even arithmetic were once considered obscure.