- ''Artificial'': not naturally occuring, also not a "clone"/"fork" of something natural. - ''Physical'': not software simulation, virtual; "exist" in the same

- ''Artificial'': not naturally occuring, also not a "clone"/"fork" of something natural. - ''Physical'': not software simulation, virtual; "exist" in the same world we live in. If my original terminology is insufficient or ambiguous, please suggest better terms.