Hacker News Reader

What about a paren-less calling mechanism?

main = putStrLn "hello"

Possible, and nice. But you lose the ability to easily specify a variable number of arguments.

Shell languages seem to do just fine using spaces to easily specify a variable number of arguments.

Yes. I forgot to mention that Haskell also supports partial application. Shell doesn't, so that's easier.

And that's just talking about syntax. The type system complicates matters further.

Well, there's always the Smalltalk approach.