While an amazing new technique, I'm a bit disappointed that it was used to create an "art" bridge. As an engineer, I'd be more interested in what a bridge would look like if it was pure utilitarian - the only material on it is what must be on it, not what is required by machining costs and stock material shapes.<p>Before anyone scoffs that this must result in nerdy and ugly shapes, airplanes are beautiful shapes and none of that is for aesthetics or artistic purposes. It's simply the best shape for flying. As manufacturing techniques improve, the airplane shapes get more subtly flowing forms, and get even more beautiful.