> It seems a meaningless metric to me. It matters to people who think of bacteria as foreign invaders, as "not-self". It can be seen as a modern version of the

> It seems a meaningless metric to me. It matters to people who think of bacteria as foreign invaders, as "not-self". It can be seen as a modern version of the debate about the location of the hypothetical soul -- you know, people have souls, but dogs and bacteria don't.