Nothing can be made or manufactured that is unnatural or artificial. By definition, anything that can exist in this universe is naturally part of the universe.
> By definition, anything that can exist in this universe is naturally part of the universe.
Agreed.
> Nothing can be made or manufactured that is unnatural or artificial.
This doesn't follow in any way, not with the definition I gave, or with any definition I have ever heard. How do you define "artificial" such that an iMac is not artificial?
I've told you my definition (anything created by a human that is not an anatomical/physiological process of that human), and by my definition it is very clearly artificial (iMacs are created by humans, and they are not a bodily secretion of humans).
> How do you define "artificial" such that an iMac is not artificial?
I don’t. iMacs are made of naturally-occurring materials. Those materials are mined or refined or formed in laboratories and factories, then assembled into something we call an iMac. All of those materials and processes are part of this universe and occur within the laws of then universe. They are all natural.
There really is nothing artificial in this regard. But that doesn’t mean some things aren’t detrimental to our health or well-being or the well-being of other life.