That guy with the "free will cervix" was a hoot! He said that the cervix didn't really do anything (in response to my assertion that it sorts sperm for viability, genetic compatibility, etc.) When I produced further documentation of my assertion he latched on to the word "purpose" saying that a cervix could have no purpose ...blah, blah, blah. It was just a misdirect in order to refuse to take purpose to mean function, and not an existential philosophical meaning of the word. It's sometimes a crazy world out there.