Whale had to agree that metal was by far the more sturdy material, though he imagined it had limitations as well. Especially complicated machinery like the kind seen in Edward's arm and leg. It reminded Whale very much of the clockwork devices he saw being crafted in his original world, how some were trying to create an automaton. Edward's automail was a step in that direction.

Whale took out a small rubber hammer often used to test reflexes. He carefully tapped the knee on Edward's automail leg. "Do you feel that at all?"