In the abstract sense, the word "natural" means absolutely nothing; just because something is "natural" doesn't mean it's good for you. Volcanoes, earthquakes, tsunamis, cocaine, opium, arsenic, snake venom, poison mushrooms, poison oak, tobacco, cosmic radiation, asteroid bombardments and a million other things --- all of which are 100% NATURAL and yet kill us human beings most efficiently. Just because it's "natural" doesn't mean it's good for you. Plus, our human brains are "natural" so anything we do or think of, good or evil, is also "natural." It's further proof that the word natural means NOTHING!
Since the law of gravity is natural - just follow me for a moment - if a person accidentally falls to their death couldn't you argue that the poor bastard died of "natural causes?"
Since the law of gravity is natural - just follow me for a moment - if a person accidentally falls to their death couldn't you argue that the poor bastard died of "natural causes?"