He looked through the options of how to change the world and saw the category of sexual characteristics. He imagined what he could do and decided to call his girlfriend so they could change the sexes together and see what would happen. After a little while his girlfriend Clara came and asked "Jeff what did you find?"
Jeff showed her the program and she was shocked as he said "I was thinking we would change humanities sexual characteristics and thought you should be able to help change the male sex as I change the female sex."
Clara said "so we change humanity in turns?'
Jeff said "Exactly. Wanna do it, I mean we can always revert it but..."
Clara said "Lets. Let me go first." Clara went and typed in something, but what?