[tmgrhm]

As a designer (and soon-to-be programmer) I totally agree that iteration is key. Iteration is so important to producing a polished product with the best possible aesthetics and experience.

However, I really do not agree that the right approach is to not think about the best possible design beforehand. Ramming your fingers in there and fumbling around blindly is a terrible idea. Think beforehand about the best possible solution and then repair and iterate on that.