I can tell you first hand that testoserone equals ignorance.
I know because after losing my left nut due to a botch vasectomy and botched operation to try to fix it (which was cutting it half) I have less testosterone. Since being half fixed I have only gotten a few tickets and have only had a few crashes.
When fully nutted, testosterone saw that I hit a wall or talked with jonny law about once a month or so.
Women are both smarter (hence the sending the men into the work force while making them feel macho) and stronger than us (hence their having the babies and not us). Once they figure out how to procreate without us, we'll be dismissed.