I don't want to push a topic if others really aren't interested. But this
question of the use of concepts from biology is one of the things that will
"keep me up at night" sometimes. So I am thrilled to be forced to articulate
what I have been thinking and get thoughtful responses. The subject line is
clear enough and it doesn't detract from the discussion LTC. However, I will
drop it if others are tired of it. - Doug Wilson