There is an intrinsic cost to murdering someone that's not dependent on human laws. There is no intrinsic cost to reusing an idea, other than that made up by human laws.
I agree that the argument about copyright should be practical, not moral - which is why I'm opposed to starting the discussion from the point of view that authors have a moral right to preventing people from copying their creations. They don't.
I agree that the argument about copyright should be practical, not moral - which is why I'm opposed to starting the discussion from the point of view that authors have a moral right to preventing people from copying their creations. They don't.