Oh--of course it was a question for Erin. Just because I posted it, doesn't mean I have to answer for her.
Hmmm...then are there any "negatives and undesirables forces to be pushed against by our own efforts?"
I'm thinking yes: I'm thinking of the 65 year old woman who just barely managed to save her husband from the jaws of a cougar in California last week with a stick and a ball point pen.