What do you define as an "artificial physical self-replicating machine"?
A genetically engineered bacterium is a self-replicating machine created via artificial means that exists to effect some purpose in the physical world.
A genetically engineered bacterium is a self-replicating machine created via artificial means that exists to effect some purpose in the physical world.
- ''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.