No language is perfect, and if we admit this truth, we must also admit that it is not unreasonable to investigate the relative merits of different languages or of different details in languages.
According to the engineers, this propeller can also be used to slow the helicopter snappily. And computerised "fly-by-wire" controls allow the X2 to be flown relatively easily.
He quotes Google co-founder Larry Page to the effect that the "perfect search engine" will ''understand exactly what I mean and give me back exactly what I want."
Not only can we never find the "perfect" punishment, our search for optimum penalties is complicated by our desire for fairness: to let the punishment fit the crime.