Well, future, delay and lazy sequences are bolt ons to an eagerly evaluated language. I'm not convinced the laziness is Haskell is worth it, tbh, but its true that you really wouldn't need this project.
Usually these kinds of demos are the same as the ones touting the virtues of Haskell's laziness. The visualization is really nice, though, along with the possible paralleization. I think the Par monad is a more interesting comparison, honestly.
