NosyNed writes:
(Note: 'living' is a bit tricky mind you....
This is a bit late, but I would like to toss in a complicating side note. As I understand this, a virus is not a living entity. It it reproduces by hijacking the mechanisms of living cells, but it does not carry on the process of metabolism.
A virus is not killed, but it can be made inactive.
Now if we throw the concept of what a virus is and how it works into the mix of how life originated, we may have a bit of a clue as to the transition between non life and life.